Revive Your Galaxy S7 Edge in 2025: The Definitive DIY Screen Replacement Guide

If your Samsung Galaxy S7 Edge has a cracked or unresponsive screen, you don’t need to discard it. In 2025, a DIY screen replacement remains a highly cost-effective and environmentally responsible solution to restore full functionality and its original aesthetic. This detailed guide provides the precise steps and expert insights necessary to extend the life of your S7 Edge, offering a rewarding path to device restoration.

Why Repair a Samsung Galaxy S7 Edge in 2025?

While the Samsung Galaxy S7 Edge launched in 2016, its enduring design and capable hardware mean it still holds significant value for many users. This former flagship, celebrated for its innovative curved display and robust performance, continues to serve admirably in specific capacities today. In 2025, a working S7 Edge functions perfectly as a reliable backup phone, a dedicated media player, a smart home controller, or a cherished sentimental device. Opting for a DIY repair offers substantial benefits beyond simply restoring its display.

Significant Cost Savings

Acquiring a new high-end smartphone in 2025 demands a substantial financial commitment. Current flagship models often exceed $1,000 to $1,500, with some premium devices pushing past the $2,000 mark. In stark contrast, a quality replacement screen assembly for a Galaxy S7 Edge typically costs between $60 and $180, depending on the supplier and screen quality. This vast difference makes a DIY repair an economically sound decision, especially if the phone otherwise meets your needs and you wish to avoid unnecessary spending.

Environmental Responsibility

Electronic waste (e-waste) remains a critical global concern, with projections indicating it could reach 82 million metric tons annually by 2030. Repairing and extending the lifespan of your electronics directly contributes to mitigating this growing waste stream. By keeping your S7 Edge out of the landfill, you actively minimize the environmental impact associated with manufacturing new devices and disposing of older ones, aligning with growing consumer demand for sustainable technology practices.

Skill Acquisition

Successfully replacing a smartphone screen provides a uniquely rewarding accomplishment. This intricate process builds practical technical skills, enhancing your understanding of delicate electronics. It also fosters a meticulous problem-solving mindset, offering tangible proof of your ability to tackle complex projects.

Sentimental Value

For many individuals, a smartphone transcends mere gadget status. It often stores irreplaceable memories, facilitates connections with loved ones, and represents a specific period in their lives. Repairing a beloved S7 Edge allows you to retain that personal connection without compromise, preserving its history alongside its functionality.

DIY vs. Professional Repair: An Honest Assessment

Deciding between a do-it-yourself repair and professional service hinges on your comfort level, budget, and available time. Both approaches present distinct advantages and disadvantages, and understanding them is crucial before proceeding.

The DIY Path

Embracing a DIY repair positions you as the primary technician, offering considerable control and direct cost benefits.

• Pros: This is typically the most cost-effective option, saving significantly on labor costs. You gain valuable technical experience and the deep satisfaction of fixing something yourself. Furthermore, you dictate the repair schedule, working at your own pace.
• Cons: DIY repairs demand patience and meticulous attention to detail. Acquiring specialized tools is necessary, and there’s an inherent risk of causing further damage if instructions are not followed precisely. Your work will not come with a professional warranty.

Professional Repair

Entrusting your S7 Edge to a professional repair shop offers convenience and peace of mind.

• Pros: Professional technicians possess the requisite tools, expertise, and often provide a warranty on their work, mitigating risk. The process is hands-off for you, typically resulting in a quicker repair turnaround.
• Cons: Professional repair services are considerably more expensive due to labor and parts markup. You may also experience downtime without your phone while it’s being serviced, which can be inconvenient.

This guide focuses exclusively on the DIY approach. If you’re prepared for a meticulous yet rewarding project, continue reading.

Is DIY Screen Repair Feasible for You?

Replacing a phone screen is an intricate task requiring a steady hand and a methodical approach, distinguishing it from simpler home repairs. Assessing your own capabilities and comfort zone is paramount for a successful outcome.

You are likely a strong candidate for a DIY repair if:

• You enjoy tinkering with electronics and possess a natural curiosity about how devices work.
• You can meticulously follow multi-step instructions without deviation, prioritizing precision over speed.
• You are willing to dedicate several hours to the project, understanding that rushing can lead to costly errors.
• You acknowledge and accept the small but present risk of unforeseen complications during the repair process.

Consider professional assistance if:

• You easily become frustrated with small, intricate components or delicate tasks.
• Time is of the essence, and you require a rapid repair without personal involvement.
• You are uncomfortable handling delicate electronic parts or working with specialized small tools.

There is no judgment in either choice; understanding your own capabilities and comfort zone is the most critical factor.

Essential Tools and Quality Parts for Your S7 Edge Repair

Successful screen replacement hinges on having the correct tools and, crucially, a high-quality replacement screen assembly. Investing in proper equipment prevents frustration and potential damage to your device.

Tool Name	Function	Importance for S7 Edge Repair
New Samsung Galaxy S7 Edge Screen Assembly	Complete front panel: outer glass, digitizer (touch layer), and AMOLED display.	The core replacement part. Ensure it’s specifically for the S7 Edge (G935F, G935A, etc.) and not the flat S7. Aftermarket screens vary significantly in quality; prioritize reputable suppliers.
Heat Gun or Hair Dryer	Applies controlled, consistent heat.	Essential for softening the strong adhesive that secures both the back cover and the screen assembly. A heat gun offers more precise temperature control and faster heating.
Suction Cup	Creates a vacuum seal to lift components.	Used to gently pull and create initial gaps for prying, particularly on the back cover and the screen itself. Choose one with a strong, reliable suction.
Thin Metal Spudger / Pry Tool	Slides into extremely tight seams.	Necessary for initial separation of the back glass and screen from the frame. Use with extreme caution to avoid scratching the frame or internal components.
Plastic Spudger / Opening Picks	Non-conductive tools for prying and disconnecting.	Ideal for separating plastic components, disconnecting delicate ribbon cables, and general prying where metal tools could cause damage or short circuits. Essential for internal work.
Small Phillips Head Screwdriver (PH000)	Precision screwdriver for tiny screws.	The primary tool for removing numerous internal screws that secure brackets and components within the S7 Edge. Ensure it has a magnetic tip for easier handling.
Tweezers (Fine-tipped, ESD-safe)	Grasps small, intricate parts.	Indispensable for handling tiny screws, disconnecting coaxial antenna cables, and manipulating small flex cables. ESD-safe (anti-static) tweezers are highly recommended to prevent static damage.
Playing Cards or Thin Plastic Cards	Maintains separation and prevents re-adhesion.	Inserted into gaps created by prying tools to keep softened adhesive from rebonding as you work your way around the device perimeter. Old credit cards or guitar picks also work.
Heat-Activated Adhesive / B7000 Glue	New bonding agent for reassembly.	Crucial for securely reattaching the new screen and the back cover. This ensures a dust- and splash-resistant seal, though not necessarily water *proof* post-repair.
Isopropyl Alcohol (90% or higher)	Solvent for adhesive and cleaning agent.	Helps loosen stubborn old adhesive residues and thoroughly cleans surfaces for optimal bonding of new glue. Evaporates quickly without leaving residue.
Microfiber Cloth	Lint-free cleaning.	Used to wipe down surfaces, especially the new screen, to remove dust, fingerprints, and alcohol residues before final assembly. Essential for a pristine finish.
Precision Knife (e.g., X-Acto, optional)	For precise adhesive removal.	Can be helpful for carefully scraping away tenacious adhesive, but requires extreme caution to prevent scratching the frame or cutting cables. Use only if experienced.
Magnetic Project Mat (Optional, Recommended)	Organizes tiny screws and parts.	Prevents small screws from rolling away and keeps them organized by location, simplifying reassembly significantly. A vital tool for complex repairs.
Anti-Static Wrist Strap / Mat (Optional, Recommended)	Prevents electrostatic discharge (ESD).	ESD can damage sensitive electronic components, leading to intermittent issues or complete failure. An anti-static setup minimizes this risk, especially in dry environments.

Sourcing Quality Parts

In 2025, the market for older smartphone parts primarily consists of aftermarket suppliers. New, original Samsung parts for the S7 Edge are virtually non-existent. However, numerous third-party manufacturers produce compatible screen assemblies. Prioritize sellers with consistently high ratings and positive reviews, specifically mentioning screen quality, color accuracy, and touch responsiveness. Some kits include a pre-installed frame, which can significantly simplify the repair by eliminating the most challenging adhesive removal step. Always verify the part number matches your specific S7 Edge model (e.g., SM-G935F for international models, SM-G935A for AT&T, etc.) to ensure compatibility.

Preparation: The Foundation of a Successful Repair

Thorough preparation is not merely a suggestion; it is the most critical phase of any intricate electronics repair. Rushing this stage significantly increases the likelihood of errors, complications, and potential damage to your device.

1. Establish a Pristine Workspace

A clean, organized, and stable environment is paramount for precision work.

• Surface: Choose a flat, sturdy, and well-lit surface. A kitchen table or a dedicated workbench works well. Avoid working on soft, uneven surfaces that can cause components to roll away or tools to slip.
• Static Control: Electrostatic discharge (ESD) can permanently damage sensitive electronic components. Work on an anti-static mat if available, and wear an anti-static wrist strap connected to a grounded object. If not, regularly touch a grounded metal object (like a metal lamp base or a bare metal pipe) to discharge any static buildup from your body. Avoid working on carpeted floors, which generate significant static.
• Organization: Use small dishes, a magnetic project mat, or compartmentalized containers to meticulously sort and store every tiny screw and component as you remove it. Labeling these containers by the component or removal step is highly recommended to simplify reassembly.

2. Comprehensive Data Backup

This step is non-negotiable. Before commencing any physical repair, create a complete backup of your phone’s data. If an unforeseen issue arises during the repair, your precious photos, contacts, apps, and documents will be safe. Utilize Samsung Smart Switch, Google Drive, or your preferred cloud service for a full system backup. This provides a crucial safety net.

3. Complete Power Down

Simply putting the phone to sleep is insufficient. You must perform a full shutdown to ensure safety. Press and hold the power button, then select “Power off” from the on-screen options. This completely cuts power to the internal components, making the device safe to handle and minimizing the risk of short circuits.

4. Remove the SIM Card Tray

Often overlooked, the SIM card tray must be removed before attempting to open the device. Use the provided SIM ejector tool (or a thin paperclip) to pop out the tray. Store it safely with your other small parts to prevent it from being lost or damaged.

5. Hand Hygiene

Wash your hands thoroughly with soap and water to remove any grease, dirt, or oils that could transfer to the delicate internal components. Ensure your hands are completely dry before handling the phone. Clean hands prevent contamination and improve grip on small parts.

With these preparatory steps complete, you are ready to begin the physical repair process. Proceed with patience and attention to detail.

The Great Screen Swap: A Step-by-Step Guide

Patience and precision are your most valuable tools throughout this intricate process. Do not rush any step; methodical execution is key to a successful repair.

Part 1: Gaining Access – Removing the Back Cover

The S7 Edge features a glass back panel secured by strong adhesive. The initial challenge is to safely soften and separate this adhesive without causing damage.

Step 1: Apply Heat to the Back Edges

Using your heat gun or hair dryer, consistently apply heat to the perimeter of the phone’s back cover.

• Temperature Control: Aim for a temperature that makes the glass uncomfortably hot to touch for more than a second or two, typically around 60-80°C (140-176°F). Avoid concentrating heat on one spot; keep the tool moving continuously to ensure even distribution and prevent localized overheating, which could damage the battery or other internal components.
• Purpose: Heat significantly weakens the adhesive, making it pliable and easier to separate.

Step 2: Initiate Separation with a Suction Cup

Once the back glass is adequately warm, firmly attach a strong suction cup near the bottom edge of the back cover, close to the charging port. Gently but firmly pull upwards on the suction cup to create a minuscule gap between the back glass and the metal frame. This initial opening is critical.

Step 3: Insert the Thin Metal Spudger

As you maintain upward tension with the suction cup, carefully insert the thin metal spudger into the tiny gap you’ve created.

• Caution: This is a delicate moment. Do not force the tool if it resists; reapply heat. Insert the spudger just enough to get under the glass layer, avoiding excessive depth, which could damage internal flex cables or the battery.

Step 4: Methodically Slide and Separate the Adhesive

Once the metal spudger has gained purchase, gently slide it along the edge of the phone. You will feel the adhesive yielding.

• Maintain Heat: If the spudger encounters significant resistance, stop and reapply heat to that specific section.
• Prevent Re-adhesion: As you create a gap, immediately insert a playing card or a thin plastic opening pick behind the spudger. This prevents the softened adhesive from re-bonding. Continue this process around all four sides of the phone, inserting new cards as you progress to keep the gaps open.
• Component Awareness: Exercise extreme caution near the bottom of the phone, where the charging port flex cable is located, and around the top, where antenna lines might be close to the edge. Avoid abrupt movements or excessive leverage.

Step 5: Carefully Remove the Back Cover

After the adhesive along all edges has been separated, gently lift the back cover away from the phone’s frame. Set it aside on a clean, safe surface. Any residual adhesive can be meticulously cleaned later using isopropyl alcohol and a plastic spudger.

Part 2: Internal Disassembly – Reaching the Core

With the back cover removed, the phone’s internal architecture becomes visible, protected by various brackets and screws. This phase involves disconnecting components to access the screen assembly.

Step 1: Remove All Phillips Screws

Locate and remove approximately 12 small Phillips head screws (PH000 size) securing the mid-frame and various plastic brackets.

• Organization is Key: Use your magnetic mat or labeled containers to meticulously store each screw. While these screws are generally uniform, maintaining organization simplifies reassembly and prevents misplaced parts.

Step 2: Remove Top Plastic Bracket and Wireless Charging Pad

Once all screws are removed, use a plastic spudger or your fingers to gently pry off the top plastic bracket. This component typically covers the motherboard and several connectors. Beneath it, carefully remove the wireless charging pad, which may be lightly adhered.

Step 3: Disconnect Essential Flex Cables

Using a plastic spudger, carefully disconnect the following ribbon cables from their motherboard connectors. Most are “press-fit” or “ZIF” (Zero Insertion Force) connectors; gently pry *upwards* on the connector itself, not the cable.

• Battery Cable: This is usually the largest cable. Disconnecting it immediately de-energizes the phone, making subsequent steps safer and preventing accidental power-on.
• Power Button Flex Cable: Often located near the power button, this controls its functionality.
• Display Cable: This critical cable connects the screen to the motherboard. Handle with extreme care as it is central to the repair.
• Side Button Flex Cable: For volume and power buttons, ensure this is also carefully detached.

Step 4: Extract the Loudspeaker Module

Locate the small loudspeaker module, usually situated at the bottom of the phone. It’s typically held in place by light adhesive or simply seated in a cavity. Use tweezers to carefully lift it out.

Step 5: Disconnect Antenna and Fingerprint Scanner Cables

Identify the tiny coaxial antenna cables (thin wires with small, round connectors) and the fingerprint scanner flex cable.

• Antenna Cables: Use fine-tipped tweezers to gently pry up the small, round connectors directly upwards. Avoid twisting or pulling the cables themselves.
• Fingerprint Scanner: Disconnect this small ribbon cable in the same manner as other flex cables, applying gentle upward pressure.

Step 6: Disconnect Front Camera, Headphone Jack, and Proximity Sensor

Proceed to disconnect the following small connectors:

• Headphone Jack Flex Cable: Disconnect its connector carefully.
• Front-Facing Camera Connector: Gently pry this connector upwards to detach the camera module.
• Proximity and Light Sensor Connector: This tiny module is usually located near the top of the phone; disconnect its associated flex cable.

Step 7: Carefully Lift the Motherboard and Disconnect Charging Port

With most cables detached, the motherboard can now be carefully lifted.

• Gentle Removal: The motherboard might be held by a few plastic clips; gently release them.
• Charging Port Flex: As you lift the motherboard, a final flex cable connecting it to the charging port assembly at the bottom of the phone will become visible. Disconnect this cable before fully removing and setting aside the motherboard.

Step 8: Remove the Rear-Facing Camera

The main rear camera module typically sits in a dedicated slot. Use tweezers to gently lift it out, being careful not to touch the lens.

Step 9: Battery Removal (Exercise Extreme Caution)

The battery is secured with very strong adhesive. This is one of the most challenging and potentially hazardous steps.

• Reapply Heat: Apply heat to the *front* of the phone, directly over the battery’s location, to further soften the adhesive.
• Slow, Gentle Prying: Using a plastic spudger, slowly and carefully begin to pry the battery from one corner. Work around the edges gradually. NEVER bend, puncture, or deform the battery. A damaged lithium-ion battery can swell, catch fire, or explode. If resistance is significant, apply more heat. Take your time and prioritize battery integrity.

Step 10: Unscrew and Remove Headphone Jack Assembly

The headphone jack module, often part of a small PCB, is typically secured by two or three small screws. Remove these screws and then lift out the entire assembly.

Part 3: Screen Removal – The Final Obstacle

With virtually all internal components removed, you can now focus on the broken screen itself. This step requires the utmost care due to the screen’s fragility.

Step 1: Apply Heat to the Front Glass Perimeter

Similar to the back cover, the screen assembly is held by tenacious adhesive. Use your heat gun or hair dryer to apply consistent heat around the entire perimeter of the front glass panel.

• Even Distribution: Ensure the heat is evenly distributed, making the glass hot to the touch but not scorching. This softens the adhesive beneath the screen, making separation possible.

Step 2: Create an Initial Gap

Place a strong suction cup onto a relatively intact section of the broken screen, or near an edge if the screen is severely damaged. Gently pull upwards to create a tiny gap.

• Spudger Insertion: Carefully insert a plastic spudger (or a thin metal one, with extreme caution to avoid scratching the frame) into this gap. Do not insert too deeply, as flex cables are present directly beneath the screen.

Step 3: Widen the Gap and Clear Adhesive

This stage mirrors the back cover removal but demands even greater delicacy due to the screen’s fragility and underlying components.

• Plastic Tools Preferred: Use plastic opening tools or playing cards to gradually widen the gap. Slide them around the entire perimeter of the screen, slowly separating the old adhesive.
• Reapply Heat as Needed: If you encounter significant resistance, reapply heat to that specific section.
• Adhesive Management: Stubborn black adhesive can sometimes be gently scraped away with a plastic spudger or a precision knife (with extreme caution). A tiny drop of isopropyl alcohol on the spudger can help loosen particularly tough spots, but prevent liquid from seeping deep into the phone.
• Patience: This step is time-consuming. Rushing increases the risk of bending the metal frame or damaging internal contacts.

Step 4: Carefully Lift and Remove the Screen

Once the adhesive is largely separated around all edges, you can carefully lift the old screen assembly from one side.

• Final Check: Ensure the display cable, previously disconnected from the motherboard, is fully detached from the old screen assembly. Once confirmed, you can completely lift away and discard the broken screen.

Part 4: Installing the New Screen – The Moment of Truth

This is the most satisfying part of the repair: installing the pristine new display. Precision in this stage ensures both functionality and a clean finish.

Step 1: Thoroughly Clean the Frame

Before placing the new screen, the phone’s frame must be immaculately clean.

• Scrape Off Old Adhesive: Use a plastic spudger, tweezers, or your fingers to meticulously remove every trace of old adhesive from the phone’s frame where the new screen will sit. This is crucial for a flat, secure bond.
• Isopropyl Wipe: Dampen a microfiber cloth with isopropyl alcohol and carefully wipe down the entire frame. This removes any remaining residue, dust, or oils, ensuring optimal adhesion for the new glue. Allow the alcohol to evaporate completely before proceeding.

Step 2: Critical Pre-Installation Test of the New Screen

DO NOT permanently glue the new screen in place without testing it first. This step saves immense frustration if the new screen is faulty.

• Temporary Connection: Carefully reconnect the new screen’s display flex cable to the motherboard. You do not need to reassemble the entire phone; simply connect the screen and the battery flex cable.
• Power On and Test: Briefly power on the phone.
• Comprehensive Check:

* Does the screen illuminate?
* Is the touch functionality responsive across the *entire* display? Drag an app icon around to all corners and edges to verify.
* Are there any dead pixels, discoloration, or screen artifacts?
* Does the brightness control function correctly?

• Troubleshooting (If Issues Arise): If the screen doesn’t work or has issues, power down, double-check all flex cable connections (especially the display and battery cables), and try again. If problems persist, the screen itself might be defective, requiring you to contact the seller for a replacement.
• Proceed: If the screen functions perfectly, power down the phone and carefully disconnect the battery and display cables again.

Step 3: Apply New Adhesive

Once the new screen is verified, it’s time to secure it permanently.

• Even Bead: Apply a thin, continuous, and even bead of your chosen heat-activated adhesive (like B7000 glue) around the entire perimeter of the phone’s metal frame where the screen assembly rests. Avoid applying excessive glue; a thin, consistent layer is sufficient for a strong bond.
• Component Clearances: Be extremely careful to avoid getting glue into the openings for the front camera, earpiece speaker, or proximity/light sensors. These areas must remain clear.
• Tacky Time: Some adhesives perform best if allowed to become slightly tacky for a minute or two before the screen is pressed into place. Consult the specific instructions for your adhesive for optimal results.

Step 4: Position and Press the New Screen

Carefully align the new screen assembly with the phone’s frame. Ensure the top section (front camera, earpiece) and bottom section (home button, charging port area) are perfectly centered and aligned.

• Gentle Pressure: Once aligned, gently and evenly press the screen down around all edges to facilitate bonding with the adhesive.
• Curing: Use specialized phone clamps or even rubber bands (wrapped gently, not overly tight) around the phone to apply light, consistent pressure while the adhesive cures. Leave it undisturbed for several hours, ideally overnight, for the strongest possible bond.

Part 5: Reassembly – Bringing It All Back Together

Now, reverse the disassembly steps to reassemble your S7 Edge with its new screen. Work methodically, double-checking each connection.

Step 1: Reconnect Motherboard and Components

• Charging Port: Reconnect the charging port flex cable to the motherboard.
• Motherboard Placement: Carefully seat the motherboard back into its designated slot, ensuring it aligns with any clips or standoffs.
• Rear Camera: Reinstall the rear-facing camera module, ensuring it sits correctly.
• Headphone Jack: Reinstall and screw down the headphone jack assembly.
• Battery: Gently press the battery back into its cavity, ensuring it sits flat and is not bent or creased.
• Front-Facing Components: Reconnect the front camera, headphone jack, and proximity/light sensor flex cables.
• Antenna and Fingerprint: Reconnect the tiny coaxial antenna cables and the fingerprint scanner flex cable. Ensure these delicate connections are secure.
• Speaker Module: Place the loudspeaker module back into its position.
• Main Flex Cables: Reconnect the display, power button, and volume button flex cables to the motherboard. Ensure they click firmly into place.
• Wireless Charging: Place the wireless charging pad back into its location.
• Top Bracket: Secure the top plastic bracket over the motherboard.

Step 2: Reinsert All Screws

Carefully reinsert all 12 Phillips head screws. Tighten them snugly, but do not overtighten, as this can strip threads or crack plastic components. Refer to your organizational notes or magnetic mat for correct screw placement.

Step 3: Reattach the Back Cover

• Clean Back Cover: Ensure the inside of the back cover and the phone’s frame are free of any old adhesive residue.
• New Adhesive (Back Cover): Apply a thin, even bead of heat-activated adhesive around the perimeter of the phone’s frame where the back cover will sit. Avoid covering the camera lenses or LED flash.
• Position and Press: Carefully align the back cover and press it down firmly. Use clamps or rubber bands to hold it in place while the glue cures, similar to the screen. Allow several hours for a strong bond to form.

Step 4: Reinsert SIM Card Tray and Power On

Once the back cover adhesive has sufficiently cured, reinsert your SIM card tray.

• Power On: Press the power button. If all steps were followed correctly, your Samsung Galaxy S7 Edge should power on, displaying its vibrant, newly installed screen.

Troubleshooting Common Issues Post-Repair

Even experienced technicians encounter minor hiccups during intricate repairs. Here are common issues and their typical solutions to help you diagnose and resolve problems.

Screen Does Not Turn On

• Battery Check: Ensure the battery is charged. Connect the phone to a charger and wait a few minutes before attempting to power on.
• Cable Connections: Verify that the display flex cable and the battery flex cable are securely connected to the motherboard. Disconnect and reconnect them to ensure a proper seat, as even a slight misalignment can prevent function.
• Faulty Part: If you tested the screen before gluing and it worked, recheck connections. If not, the new screen assembly might be defective.

Touchscreen Unresponsive or Erratic

• Display Cable: The display flex cable, which also carries touch data, might be improperly seated. Disconnect and reseat it on the motherboard, ensuring it’s fully engaged.
• Debris: Ensure no debris or old adhesive is obstructing the flex cable connectors or the digitizer itself.
• Faulty Screen: A defective new screen is a possibility, especially if issues persist after checking connections.

Phone Fails to Power On

• Battery Connection: The battery flex cable is the most common culprit. Ensure it is firmly connected to the motherboard.
• Power Button Cable: Verify the power button flex cable is properly connected and not damaged.
• Hard Reset: Attempt a forced restart (typically holding Power + Volume

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