[SOLVED] I'm looking for Doogee DK10 repair guide or schematics (free) - Phones & Tablets Forum

Hi,

I'm hoping you can help me out with my Doogee DK10. 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.

@Lucio

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 Doogee DK10 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/475479/iPhone+turns+on+right+after+turning+off
Take a look at comment #895
Also, this : https://www.ifixit.com/Answers/View/704329/My+phone+is+constantly+overheationg,+how+can+I+fix+that.
You can also check this video starting from minute 5:

The Doogee DK10 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 Doogee DK10 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 Doogee DK10 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 Doogee DK10 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/dev-solved-need-advanced-help-with-hboot-unique-s-off-situation.2369370/

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

Aging/Degradation: Over very long periods, components can degrade, but this is less frequent for thermal sensors themselves compared to batteries or displays. Gently clean them with a soft, lint-free cloth or a cotton swab lightly dampened with isopropyl alcohol. Apply Flux: Apply a generous amount of liquid flux around the base of the USB-C port, ensuring it wicks underneath the port and around all the pins and anchor pads. Consult a specific guide for your phone model (e.g., iFixit.com) to confirm the correct opening procedure. Color shift: Colors can appear slightly different from various viewing angles compared to LCDs. Damaged Battery: While the battery itself might drain if faulty, the symptoms of excessive drain usually point to something drawing power from the battery, not the battery leaking it internally. It's important to accurately diagnose the type of pixel issue and manage expectations. They contain various partitions, including boot partitions, system partitions, cache, and most importantly, the user data partition where personal files are stored. Quantization Noise: Digital gyroscopes convert analog signals to digital values. Always consult a specific repair guide for your phone model if available. Replacing a malfunctioning home button can breathe new life into a struggling smartphone, restoring its core navigation and, in some cases, its biometric security. If it doesn't slide in easily, the latch is likely not fully open or the cable is misaligned. Clearing the cache partition (different from clearing individual app caches) can resolve such issues without deleting your personal data. Factory Reset (Last Resort for Software): Back up your data, then perform a factory reset. Hardware Fault: The sensor module itself may be faulty, requiring replacement. It houses the operating system, user data, applications, and all critical firmware components. Improve Performance: Over time, software can accumulate corruption or fragmentation. The diagnostic process should always begin with the simplest and most external components, progressively moving inward towards more complex internal hardware. Screen Not Working/Flickering: Recheck the display and digitizer flex cable connections. Repair: Involves micro-soldering to replace the faulty IC or components. Soldering Iron (Fine Tip): For minor touch-ups or surrounding components. Transfer Small Components: Carefully inspect the old mid-frame for any minute, often overlooked components that might be glued or clipped on and need to be transferred to the new mid-frame. Liquid Damage: Corrosion can create unintended electrical paths, leading to shorts. Central Pin: A small, delicate pin that connects to the central conductor of the coaxial cable. Corrosion/Discoloration: Look for green, white, or brown residue indicating liquid damage, or any signs of burning/discoloration. This is a generalized guide; specific disassembly steps vary significantly by phone model. Software might show a battery is at 80% health, but if the user reports shutdowns at 30%, it could indicate high internal resistance not fully captured by the percentage. Inspect the connectors on the motherboard where the antenna flex cables or coaxial cables attach. Take a Test Photo: Capture a photo of a uniform, bright surface (like a white wall). Extremely thin solder wire (0.2mm to 0.4mm) is used for fine pitch components.

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