[SOLVED] I'm looking for IGlo E6700 repair guide or schematics (free) - Phones & Tablets Forum

Hi,

I'm hoping you can help me out with my IGlo E6700. 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.

@Aurore

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 IGlo E6700 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/800688/Why+am+I+unable+to+connect+to+a+WiFi+signal
Take a look at comment #1039
Also, this : https://www.ifixit.com/Answers/View/447891/Why+does+my+iPad+keep+%E2%80%9Cghost+typing%E2%80%9D.
You can also check this video starting from minute 4:

The IGlo E6700 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 IGlo E6700 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 IGlo E6700 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 IGlo E6700 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/Answers/View/870531/Why+won't+my+car+lock

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

If software troubleshooting doesn't resolve the distorted audio, the problem is likely hardware-related. Sometimes, if the PCB substrate itself is heavily charred or traces are damaged beyond repair, the entire logic board may need replacement. Physical Damage: Visible damage to the speaker grille or the speaker module itself (e.g., after water exposure or a drop). Performance Maintenance: As part of a thorough repair for overheating issues, replacing degraded thermal pads is a logical step. Centering: Most wireless chargers have a "sweet spot" for optimal charging. Factory Reset: As a last resort, performing a factory reset (after backing up all data) will rule out deep software corruption. If possible, cover the actual camera sensor with Kapton tape during removal. Interpretation: Compare the reading on the multimeter to the expected voltage specified in the schematics for that test point. The vibration motor in your smartphone is a small but essential component that provides haptic feedback, alerting you to calls, messages, and notifications discreetly without making an audible sound. This condition indicates that the device's charging circuit or a connected peripheral is attempting to draw more current than is safe or allowable, triggering protective mechanisms within the phone or the charging source. Factory Reset (Last Resort Software Step): If all else fails on the software front, a factory reset might resolve deep-seated software corruption. Tears/Nicks: Can occur from sharp tools, excessive pulling, or rubbing against sharp edges within the phone. The key elements are careful disassembly, precise component replacement, and meticulous re-sealing to ensure the phone's integrity and functionality are restored.7. This is not a repair for basic toolkits; it demands specialized industrial-grade equipment: Ceramic capacitors are non-polarized, so orientation doesn't matter electrically, but for aesthetics, you can match the original's orientation. Recognizing the symptoms is the first step in diagnosing a faulty RF antenna cable: Without this methodical approach, attempting repairs on a shorted board can lead to further, irreversible damage.7. Distance and Clarity: Speak clearly and at a normal volume, holding the phone at a reasonable distance. Component Quality: Always use high-quality, OEM-grade replacement parts. High-quality precision tweezers are essential for manipulating tiny components. It uses an infrared emitter and receiver to detect when an object (like your ear) is close to the screen, turning off the display during calls to prevent accidental touches and save battery. Secure and Insulate: Once all broken traces are jumped, clean the area. For phones like iPhones, the screen opens like a book; for many Androids, the back cover comes off. Test continuity between the component and its next logical connection point. Before using a hot air station for diagnostics, reinforce these safety practices: Allow the IPA to evaporate completely for at least an hour before attempting to charge or power on the device. PMIC (Power Management IC): A critical IC that distributes power to various parts of the phone. Obvious Tears: A complete severance or visible fraying of the flexible material. Heat Gun or Hair Dryer: To soften the adhesive holding the screen or back cover. Different Charger/Cable: Always test with a known-good, official charger and USB-C cable.

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