Forum Phones & Tablets Repair
Discussion Starter - #1 - 1 week ago

Hi,

I'm hoping you can help me out with my Akortek Dark Evo P60. 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.


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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.



>>>> Akortek Dark Evo P60 maintenance guide & schematics (pdf + fz)

Good luck

Discussion Starter - #3 - 1 week ago

@Mélanie

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 Akortek Dark Evo P60 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/Answers/View/339059/Why+is+my+phone+in+a+boot+loop
Take a look at comment #503
Also, this : https://www.ifixit.com/Answers/View/910423/Tye+icloud+Is+locked+to+owner+message+is+showing..
You can also check this video starting from minute 6:


The Akortek Dark Evo P60 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 Akortek Dark Evo P60 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.



emoji scratching head

My Akortek Dark Evo P60 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 Akortek Dark Evo P60 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/runner-apk-displaying-sideloaded-apks-in-gp.4650853/

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

Boot your phone into Safe Mode (search for specific steps for your device model). It allows technicians to not only identify obvious cosmetic issues but also to uncover hidden structural weaknesses that could lead to more severe problems down the line, ensuring a more robust and reliable repair.## 8. High-purity isopropyl alcohol (90% or higher) and lint-free cloths are useful for cleaning contact points. If the new display also shows issues: The problem likely lies with the motherboard-side connector (bent pins, faulty solder joints), the display driver IC on the motherboard, or a power rail issue related to the display. It contributes to accurate altitude readings in mapping and fitness applications, enables precise "floor climbed" counts, assists weather apps with local pressure data, and even enhances GPS accuracy, particularly in areas with varying elevations. This error isn't usually indicative of a major hardware failure but rather a software conflict, corruption, or resource issue. Magnifying Glass/Loupe: For detailed inspection of gaps and subtle distortions. Physical Damage: Look for dents, cracks, or deformation on the motor casing. Wi-Fi: Go to Wi-Fi settings, tap on the problematic network, and select "Forget Network." Then, search for it again and re-enter the password. How it works: The rubber creates extra friction between your driver and the stripped screw head, providing a better grip. This problem can be incredibly frustrating for users, as it effectively tethers their "mobile" device to a wall outlet. Analyzing these logs requires technical expertise but can pinpoint exact system components or services that are misbehaving. Disconnect the Battery: Immediately disconnect the battery flex cable from the motherboard using a plastic spudger. Clean Workspace: Crucially, perform all disassembly in a clean, dust-free environment. If flashing fails with "write error" or "partition write failed" messages, it's a very strong indicator of a failing storage chip. Remove all securing screws, flex cables, and antenna cables, then gently lift the motherboard out. Look for any visible damage, such as liquid residue (even dried traces), corrosion, bent pins on the flex cables, or physical cracks on the small sensors within the module. Boot Loop: The phone gets stuck in a cycle of showing the manufacturer logo, then crashing, and restarting, never reaching the home screen. Symptoms of a faulty headphone jack are usually clear indicators that a replacement is needed. Remember to keep track of all screws you remove; organization is crucial, as misplacing or mixing up screws can lead to problems during reassembly (e.g., using a longer screw in a shorter hole can damage internal components). Most cases are software-related and can be resolved by addressing problematic apps, clearing caches, or re-flashing firmware. Carefully position the new power button flex cable into the phone's frame. These problems can manifest in various ways, from slow browsing speeds and frequent disconnections to an inability to connect to any network at all. Low-temperature solder paste (138°C or 183°C) is preferred to reduce overall heat exposure. Understanding its operation, the nuances of thermal profiling, and the associated safety measures is critical for any technician venturing into this advanced repair territory. Avoid unofficial apps or sources, especially those requiring root access, unless you understand the risks. Update OS: Ensure the operating system is fully updated to the latest available version. Unexpectedly low resistance on a power or data line could indicate a short. Clean the residual solder from the motherboard pads using a soldering iron and desoldering braid. Look for "Maximum Capacity" percentage and whether "Performance Management" is enabled.

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