[SOLVED] I'm looking for OYSTERS Respect repair guide or schematics (free) - Phones & Tablets Forum

Hi,

I'm hoping you can help me out with my OYSTERS Respect. 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.

@Miroslav

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 OYSTERS Respect 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/q-long-sms-converts-to-mms-disable.1943989/
Take a look at comment #887
Also, this : https://www.ifixit.com/Answers/View/629152/Battery+replaced+and+still+not+turning+on..
You can also check this video starting from minute 8:

The OYSTERS Respect 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 OYSTERS Respect 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 OYSTERS Respect 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 OYSTERS Respect 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/q-q-chinese-galaxy-note-3-n9002-dual-sim.2508407/

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

Hot Air Rework Station: For desoldering and soldering surface-mount components (SMD) and integrated circuits (ICs). Lack Force Touch: Cheaper aftermarket screens often omit the pressure-sensing layer entirely or implement it poorly. If the partition table is severely corrupt, these commands might fail or return errors, further confirming the diagnosis. Portrait Mode Issues: Inaccurate background blur, jagged edges around the subject, or the phone failing to apply the bokeh effect entirely. In conclusion, evaluating smartphone touchscreen multi-touch errors is a systematic diagnostic process that combines interactive testing with specialized software, careful observation, and an understanding of potential causes. A Secure Element, often an independent chip or integrated within the System-on-Chip (SoC) or a dedicated microcontroller, acts as a secure enclave. Professional Hot Air Rework Station: With precise temperature control (down to ±1°C), adjustable airflow, and various nozzle sizes. Under ICs: Liquid often gets trapped under large Integrated Circuits (ICs). Complete Initial Setup: Go through the Android setup process on your phone. A simple reboot can clear temporary software conflicts affecting audio drivers. Press the wick onto the pad with the iron, allowing it to soak up the molten solder. Watching someone else perform the repair can provide invaluable guidance. Liquid Damage: Corrosion can degrade rubber mounts or seize spring mechanisms. Measuring these can confirm if a power management IC (PMIC) is supplying power correctly. Software updates often include bug fixes and performance optimizations that can improve thermal management. With the right tools and a careful approach, you can restore your phone's wireless charging capabilities and enjoy the convenience it offers once again.2. Battery Disconnection: The absolute next step after opening is to disconnect the battery. Vetting Tips: Rely heavily on seller ratings, detailed product descriptions, and explicit statements about part grade. Logic Board Issue: If all antenna components appear perfect, and cleaning/re-seating doesn't help, the issue might lie deeper on the logic board itself (e.g., a faulty transceiver chip, damaged traces). Damaged Traces: Repair severed or corroded traces with fine jumper wires. Disassemble and Disconnect Battery: Open the phone carefully and immediately disconnect the battery. Pre-Diagnostic Prep: Ensure the device is charged, backed up (if possible), and connected to the diagnostic system (usually via USB or Wi-Fi). Anti-Static Mat and Wrist Strap: Always use these when working on electronics. Carefully peel off the protective backing from the new camera glass (if it has pre-applied adhesive). For enthusiasts who venture into the world of custom ROMs, the ability to modify and control their smartphone's software environment is empowering. Before considering hardware intervention, it's crucial to exhaust all software-related troubleshooting steps. No Data Transfer: The computer doesn't recognize the phone, or file transfers fail. The goal is to warm the metal to make it more pliable and to soften any adhesive that might be under stress. A good motor should show a very low resistance reading (typically between 8 to 50 ohms for ERM, LRAs can vary). Test in Safe Mode: Booting your phone into Safe Mode (which disables third-party apps) can help determine if a rogue app is interfering with the sensor.

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