[SOLVED] I'm looking for Samsung Galaxy S6 edge repair guide or schematics (free) - Phones & Tablets Forum

Hi,

I'm hoping you can help me out with my Samsung Galaxy S6 edge. It's started acting up, and I'm looking for a detailed service manual with boardviews and schematics to properly diagnose and repair it. I need to take precise voltage measurements around the board, so having the right documentation would be very helpful.

Thanks in advance for your help.

Selected Answer

I actually found that service manual on a tech Discord server a while back. A really helpful member there shared a direct link to their blog and I've saved it. I'm happy to pass it along here. Hopefully, these boardviews and schematics help you fix your phone, just like they got me through my repair. Looks like we have the same model.

@Leah

Absolute legend! That's exactly the info I was searching for. This is going to save me so much time probing in the dark. Seriously, thanks a ton for sharing the link!

Hi there,

I also have the Samsung Galaxy S6 edge and just downloaded the manual you shared. I'm pretty new to board-level phone repair, and this is a bit intimidating with all the tiny test points and the schematics. Could you point me in the right direction on how to start troubleshooting this ? Any advice on the first few things I should check would be a massive help.

Thanks so much for your time

General advices: start by checking the voltage at the battery connector on the board. With a known-good battery connected, you should see a steady voltage between 3.7V and 4.2V. After that, a great next step is to check the main power management IC (PMIC) for shorts. Using your multimeter in diode mode, check for shorts on the large input capacitors surrounding the PMIC.

Here are a few useful references for troubleshooting your device:
https://xdaforums.com/t/low-light.3646434/
Take a look at comment #636
Also, this : https://xdaforums.com/t/s6-or-s7.3579810/.
You can also check this video starting from minute 2:

The Samsung Galaxy S6 edge service manual and boardviews from the link above were exactly what I've been searching for. I couldn't find a complete, free copy anywhere else. Seriously, thank you for sharing this you're a lifesaver!

Hi everyone, I'm working on a Samsung Galaxy S6 edge with a no power issue and need some guidance with my measurements.
I'm detecting 3.3V on the VREG_MAIN line (pin 1 of the PMIC), which looks good, but I'm getting 0V on the VDD_CPU line (pin 8) where the schematics indicate I should see about 0.9V.
Since this is a core voltage for the application processor, could this missing rail be why the device shows no signs of life?
What's the best procedure to diagnose this further? Should I check for shorts on the CPU rail first, or look at the PMIC's enable signals?
I've already verified the main 3.3V and 1.8V power rails are present and stable.

My Samsung Galaxy S6 edge was working perfectly until yesterday when it suddenly went completely dead. Now it won't respond to the power button, doesn't vibrate, and shows no signs of life even when connected to a charger. I'm worried there might be a serious issue.

I have a decent multimeter, a basic soldering iron, and a healthy dose of patience. While I've successfully replaced iPhone batteries and charging ports, this will be my first attempt at actual diagnosis. The sheer density of BGA chips and microscopic components is honestly a bit overwhelming.

I'm particularly curious about the alcohol trick I've seen online where you apply isopropyl to the board and look for evaporation hotspots to locate shorts. Is this actually a reliable method for beginners, or are there better approaches I should try first with just a multimeter?

I learned this lesson the hard way last month with mine, it was declared "dead" by two different shops. The phone showed absolutely no signs of life - no charging indicator, no vibration, nothing. Before diving into complex board work, I decided to try one more basic test: wireless charging.

To my complete surprise, it actually heated up on the charging pad! This single discovery completely changed my diagnostic path. It turned out the issue wasn't with the main board or processor, but with the notoriously fragile USB-C port that had failed completely. A $15 replacement part and some careful soldering brought it back to life.

The moral? Always exhaust every external testing method before opening the device. Test wireless charging if available, try different charging methods, and don't assume the worst case scenario. Sometimes the most "dead" devices have the simplest solutions hiding in plain sight.

I suspect my issue might be related to that cheap, third-party fast charger I used at the airport last week... Now the device gets extremely hot during charging, the screen flickers at low brightness, and sometimes it randomly shuts down at 30% battery. Could this have damaged the power management IC or battery calibration?

If your Samsung Galaxy S6 edge starts acting up, random reboots, fast battery drain, or connectivity issues, there are several diagnostic steps you can take before assuming the worst:

• Check your charging habits: Using poor-quality chargers or wireless pads can gradually damage your battery and charging circuit, leading to unpredictable behavior.
• Inspect the physical components: A slightly damaged charging port, worn battery, or even accumulated pocket lint can cause issues that seem like major hardware failures.
• Monitor temperature patterns: If your phone gets unusually hot during specific tasks (like camera use or gaming), it could point to a failing component rather than a software issue.
• Use diagnostic tools wisely: Ampere for battery health, phone diagnostic codes (*#0*# on many models), and a thermal camera can reveal problems without opening the device.
• Know when to stop: If you see liquid damage indicators tripped or smell burnt electronics, it's time to consult a professional before causing irreversible damage.

Also visit this link it may help : https://xdaforums.com/t/s-off-only-splashes-ics-blue-skull-splashes-by-dyetheskin.1622076/

Here's what I discovered on forums and technical databases:

The exact order of steps varies significantly between phone models, so ALWAYS consult a specific repair guide or teardown video for your exact phone model (e.g., from iFixit, YouTube, or other reputable sources) before you begin. If the old adhesive is no longer strong, you might need to apply new B-7000 adhesive to the frame before pressing the panel back on. Secure Fastening: They provide a physical anchor, often working in conjunction with screws and adhesive, to keep assemblies tightly fitted. Power Supply (Bench Power Supply, Optional): To precisely control voltage and current to the logic board for diagnosis. This guide will demystify battery calibration, explain why it's important, and provide a clear, step-by-step process to ensure your new battery performs at its best. Test points are essentially designated access points designed into the PCB for various purposes during manufacturing, quality control, and post-production diagnostics. Magnification: A microscope or jeweler's loupe for close inspection of tiny connectors and contacts. At this point, consulting a professional repair technician specializing in mainboard-level repairs is advisable. This exposure can lead to accelerated wear, short circuits, or even complete device failure. Check BGA Components: Pay close attention to the solder joints around large BGA chips. A methodical diagnostic approach is necessary to pinpoint the exact cause and implement an effective solution, preventing data loss and restoring seamless storage functionality. You can then uninstall apps one by one to identify the problematic one. Observe Current (Pre-Boot): If the phone is powered off, connect a charger (or inject 5V from the DC supply to VBUS, if safe). Incorrect Diagnosis: The problem might not have been the amplifier, but another component (e.g., the antenna itself, or the main RF transceiver IC on the motherboard which is a non-DIY repair). What makes repairing them particularly challenging is the trend of integrating tiny surface-mount components (SMCs) directly onto the flex itself, along with extremely fine traces. Many common charging issues can be resolved with basic troubleshooting and a few affordable replacement parts. Issues found here can be both a cause and a consequence of overheating. Component Failure: A faulty display panel, backlight, or display controller IC. Part Pairing/Serialization (Implicit/Newer Factor): Although not a direct point in the original scoring, iFixit's reviews increasingly highlight how manufacturer practices like part serialization (where components are "paired" to the motherboard via software, causing functionality loss or warnings if replaced with non-original parts) severely impact repairability and functionality restoration. It attracts moisture from the air, not from inside the phone, and leaves starchy residue. For some phones, it might be Power and Volume Up, or just the Power button for an extended period. Examine Anti-Rollback Fuses: (Advanced, often requires specialized tools or developer insight) Router Firmware: Ensure your router's firmware is up to date, as updates can improve channel management and interference robustness. If you are replacing the entire screen, the new screen will come with a button bracket but without the Touch ID sensor. This confirms if the charging port is receiving power from the cable and outputting it. Assessing its calibration is key when users experience issues like accidental call interactions or a screen that remains stubbornly black after a call. It transforms a powerful pocket computer into an inert brick, cutting off communication, access to information, and all the conveniences we rely upon daily. Logic Board Inspection: Examine the area of the logic board immediately around the speaker connector and the audio IC (often a larger chip near the connector). Action: For Android, long-press the power button, then long-press "Power Off" (or similar) until a "Reboot to Safe Mode" option appears. In summary, a smartphone that only charges when powered off is a symptom of an underlying issue related to power delivery and management under load.

@Gaby, Not sure what you're trying to say but ok :)