[SOLVED] I'm looking for Google Pixel 7 UW repair guide or schematics (free) - Phones & Tablets Forum

Hi,

I'm hoping you can help me out with my Google Pixel 7 UW. 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.

@Michele

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 Google Pixel 7 UW 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://www.ifixit.com/Guide/Samsung+Galaxy+Tab+8.9+Vibration+Motor+Replacement/91183
Take a look at comment #372
Also, this : https://xdaforums.com/t/closed-any-help-much-appreciated.4396479/.
You can also check this video starting from minute 5:

The Google Pixel 7 UW 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 Google Pixel 7 UW 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 Google Pixel 7 UW 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 Google Pixel 7 UW 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://www.ifixit.com/Answers/View/545572/Does+changing+the+battery+also+require+us+to+change+the+screen

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

Android: Some manufacturers include battery health metrics in `Settings > Battery`. Interference from Other Components: After a repair, if a component is misaligned or an incorrect part is used, it could potentially interfere. Minor Cracks (near edge, not through critical areas): If only surface traces are affected, these can theoretically be jumpered as above. If you're unsure at any point, it's always best to consult a professional repair technician. With Another Charger: If you have access to a different, known-good wireless charging pad, try charging your phone on it. It heats the entire PCB from below, reducing thermal shock to the board, allowing lower hot air temperatures, and preventing board warping. Manufacturers frequently release updates that address network compatibility and dual-SIM stability issues. Carefully place it squarely on top of the SoC, ensuring good, even contact. Pad Cleaning: Clean the solder pads on the motherboard using a soldering iron, solder wick, and fresh flux to create a flat, clean surface for the new component. For the purpose of a common DIY repair, we assume the barometer is on a replaceable flex. Many speakers use their metal frame as a ground path, which then contacts a ground point on the chassis or PCB. They show the location, value, and connection points of every component and trace. Logic Board: Unscrew all retaining screws and disconnect all flex cables (camera, charging port, buttons, antenna cables, display, etc.). The importance of this step cannot be overstated, directly impacting several key aspects of a repair: A small amount of isopropyl alcohol can help dissolve stubborn adhesive, but use sparingly and avoid internal components. Patience is Key: Never rush any step, especially when prying open the phone or connecting delicate flex cables. If the original flex cable is irreparably damaged, Face ID will, regrettably, remain non-functional.## 8. Access Front Flex Assembly: Remove any screws, metal shields, or other components that cover the front-facing flex cable assembly. Antenna continuity is a fundamental aspect of smartphone functionality, directly impacting its ability to connect to cellular networks, Wi-Fi, Bluetooth, and GPS. Continuity: Use a multimeter in continuity mode to check for breaks in these traces between the SIM card reader and the baseband processor (or intermediary components). Known Good Flex Cable: If the display has a separate, easily replaceable flex cable, try a new one. If you spot any bridges, apply a tiny amount of flux and use your fine-tipped soldering iron to carefully drag away the excess solder or use desoldering braid. Ventilation: Work in a well-ventilated area, especially when dealing with adhesives or if a battery emits fumes. The Importance of Cleaning Flux Residue After Soldering Smartphone Components Correct Insertion: Ensure both SIM cards are correctly seated in their respective slots within the SIM tray. The integration of multiple antennas further complicates the design and placement challenges, requiring meticulous electromagnetic simulations and prototyping. Keep holding until the device boots into Safe Mode (you'll see "Safe Mode" indicator on the screen). Look for shorts: Use your multimeter in diode mode or continuity mode to check for short circuits to ground on the line after the blown fuse (on the side closer to the protected components). RAM (Random Access Memory) is crucial for a smartphone's performance, as it temporarily stores data that the CPU needs to access quickly. Damaging Flex Cables: Always know the location of flex cables before prying.

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