[SOLVED] I'm looking for INHON Ola Pop G260 repair guide or schematics (free) - Phones & Tablets Forum

Hi,

I'm hoping you can help me out with my INHON Ola Pop G260. 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.

@Noura

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 INHON Ola Pop G260 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/Troubleshooting/Mac_Laptop/MacBook+Stuck+On+Loading+Screen/486734
Take a look at comment #746
Also, this : https://www.ifixit.com/Answers/View/611634/Laptop+Will+Not+Boot+After+Battery+Drained+to+0%25.
You can also check this video starting from minute 10:

The INHON Ola Pop G260 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 INHON Ola Pop G260 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 INHON Ola Pop G260 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 INHON Ola Pop G260 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/Guide/Google+Pixel+Tablet+Enclosure+Replacement/163092

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

Google Pixel (or some phones that enter Fastboot first): Press and hold Volume Down + Power button to enter Fastboot Mode. Disconnect Battery: Always disconnect the battery before working on the logic board. Headphones only: If distortion is only through headphones (wired or Bluetooth), the headphone jack, Bluetooth module, or their respective audio pathways are suspect. By meticulously following principles of minimal length, correct gauge, robust insulation, and strategic strain relief, technicians can resurrect complex PCBs with confidence, extending the life of valuable devices.8. Finally, reassembly should be performed in a clean environment, ensuring no new contaminants are introduced. If one side comes up significantly more than the other, you risk bending pins. This is a highly advanced repair that requires specialized diagnostic tools (multimeter, oscilloscope) and micro-soldering skills. Identifying smartphone screen burn-in involves critical visual inspection against solid color backgrounds, focusing on areas prone to static image display. This is particularly noticeable if you spend a lot of time in areas with weak cellular coverage. Update OS / Firmware: Check for and install any available system updates. Micro-soldering is an advanced repair skill that allows technicians to fix issues directly on a device's logic board, bypassing the need for costly motherboard replacements. Physical Inspection: Visually inspect the phone to ensure the new bezel is flush, even, and free of gaps. If your rooted phone develops a hardware issue, you'll likely be responsible for the repair costs. Application: Using a precision applicator, apply a very thin, even bead of UV glue to the perimeter of the sensor module's active area or the corresponding area on the back of the display. This control is paramount for safely diagnosing and isolating faults without causing further damage, particularly during the initial boot sequence or when dealing with short circuits. Disconnect Battery FIRST: As soon as the phone is open enough, disconnect the battery connector. Replacement internal plastic vibration motor mount (sometimes sold with the motor, sometimes a separate frame part) Use isopropyl alcohol (90%+) to help dissolve stubborn adhesive strips. Inspect Display Assembly Back: Look for signs of impact or liquid damage on the back of the display assembly itself, particularly around the digitizer controller chip if it's visible. Motor Detachment: After a drop, the motor might be visibly loose inside the phone. Changes in user appearance such as new eyeglasses, sunglasses, a mask, a new beard, heavy makeup, or a different hairstyle can confuse the system, particularly if the initial enrollment didn't account for these variations. Caution: Do not insert the tool too deeply, as internal flex cables are often just below the surface. Speaker/Microphone Grills: Use a soft brush and compressed air to dislodge any trapped debris. This method is for devices where the USB-C port is soldered directly onto the main logic board and requires advanced microsoldering skills and specialized equipment. Remove all screws and connectors to fully extract the logic board from the phone housing. Go to Secure Folder settings (usually by tapping the three dots or a gear icon within the Secure Folder app). It measures the exact magnitude and direction of these rotational shifts around all three axes (pitch, roll, and yaw) in real-time, often hundreds or even thousands of times per second. Explanation: A factory reset wipes all user data, including the secure folder. Test outside your home (e.g., a friend's house, a coffee shop) to determine if the interference is localized to your home environment. Clean USB Port on Phone: Inspect the phone's USB port with a flashlight for lint, dust, or debris (like the ones described in Topic 3 for oxidation).

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