[SOLVED] I'm looking for Huawei Ascend Y560-L02 LTE repair guide or schematics (free) - Phones & Tablets Forum

Hi,

I'm hoping you can help me out with my Huawei Ascend Y560-L02 LTE. 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.

@Yasmin

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 Huawei Ascend Y560-L02 LTE 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/300547/How+do+I+free+up+my+storage+space
Take a look at comment #1374
Also, this : https://xdaforums.com/t/ear-piece-and-sound-problem-while-on-calls.4193835/.
You can also check this video starting from minute 4:

The Huawei Ascend Y560-L02 LTE 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 Huawei Ascend Y560-L02 LTE 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 Huawei Ascend Y560-L02 LTE 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 Huawei Ascend Y560-L02 LTE 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/can-i-install-a-rom-in-other-device-is-almost-identical-the-same.3786822/

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

Do not cover the can itself or its solder points, as this would hinder heat transfer. These are typically snap-on connectors, so gentle prying from the bottom of the connector is usually sufficient. Sometimes, if a specific trace on the flex is broken, microscopic soldering might be attempted, but it's often more reliable to replace the entire flex. They come in various widths and thicknesses, and are frequently pre-cut into precise shapes for specific phone models (e.g., battery adhesive, display adhesive). Begin with the least invasive steps to rule out common software or user-related issues. If it doesn't light up during charging, it's a strong indicator of a broader issue. Once the internal components are visible, you'll need to identify the specific antenna contact points relevant to the connectivity issue you're diagnosing (e.g., Wi-Fi antenna for Wi-Fi problems, cellular antenna for signal issues). This substantial reduction in required heat dramatically diminishes the thermal stress on the PCB and its components. Play a variety of audio types (music, videos, call recordings) to see if the issue is consistent. Increase Brightness: The simplest solution, though not always practical. Bent or Flattened Springs: Springs that have lost their tension and no longer protrude sufficiently to make good contact. Brands like 3M (especially VHB - Very High Bond) and Tesa are prominent manufacturers. The charging cable, often overlooked, is a critical component in the smartphone charging ecosystem. Failure to Enroll Face ID: The setup process repeatedly fails, often stating "Face ID setup is not available." Preparing for Sale (Partial): If you want to sell the phone but keep some system apps/settings while clearing user data. Use a protective case that covers ports if working in dusty environments. The "Android System" category represents the core operating system and its underlying services. Adhesive: Some bezels are also secured with adhesive, especially if they are very thin or part of the front assembly. OS updates often include crucial bug fixes and driver improvements for hardware components like the GPS module. Guide to Replacing the Primary Storage Chip (UFS/eMMC) on a Smartphone For phones like iPhones, the screen opens like a book; for many Androids, the back cover comes off. The Canadian Wireless Telecommunications Association (CWTA) manages a national blacklist database, further emphasizing the importance of IMEI integrity. New Power Button Flex Cable Assembly: This is the core replacement part. A multimeter can be used to check continuity and resistance to ground, confirming if a pad is open (no connection) or shorted. If one speaker is out of phase, the thump will sound weak, diffuse, or like a "flapping" sound, as the opposing movements of the cones cancel each other out. Frame Analysis and Cropping: With the gyroscope data, the software can anticipate and compensate for motion. Water can cause corrosion and short circuits, leading to ghost charging and other electrical faults. Random Shutdowns/Boot Loops: The device might suddenly turn off and refuse to turn back on, or get stuck in a continuous reboot cycle. Unlike "charging paused," which suggests a temporary halt, this message explicitly states that despite being connected to a power source, no charge is being delivered to the battery. Faulty Charger/Cable: A non-compliant, low-quality, or damaged charger/cable can deliver unstable current, leading to inefficient charging and heat generation.

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