LeEco Le Pro 3LeEco Mobile Phone

LeEco Le Pro 3 Teardown

LeEco Le Pro 3 comes with a unibody metal design. The Le Pro 3 features a 5.5-inch full HD (1080p) display covered with a 2.5D glass and is powered by Qualcomm’s Snapdragon 821 quad-core processor clocked at 2.35GHz paired with 4GB/6GB of RAM. It comes with 32GB/64GB of onboard storage options. On the photography a 16-megapixel rear camera and an 8-megapixel selfie camera. Other connectivity options like dual-SIM card slots, 4G LTE support, Wi-Fi, GPS and Bluetooth. On the software front, it runs on Android 6.0.1 Marshmallow OS based on eUI 5.8 custom UI.

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Remove the SIM card tray.
The SIM card tray with a “T” shape, it can be installed two Nano SIM cards.

In order to remove the display assembly, we need to heat up the display edges with a heat gun.
Open up the display assembly a little bit with a suction cup, at the same time, insert a guitar pick and slide it along the edges to take off the display.

Be careful. The touch cable is still connecting to the motherboard.
Remove two screws securing the metal plate. You will be able to disconnect the cable.

Here’s LeEco Le Pro3 display assembly.
LeEco Le Pro3 features a 5.5-inch full HD (1080p) display, and the touch chip comes from Synaptics, the model is S3320A.

Under the screen, there is a metal plate, used to isolate the screen and the fuselage, the metal plate covered with a layer of thermal insulation foam. It is used to reduce influenced to the display by the internal temperature.

Remove all screws securing the metal plate.
There is a screw is covering by fragile stickers. If you damage it, you will void the warranty.

Here’s the metal plate.

With the metal plate removed, you can get access to the battery, camera, speaker and motherboard.

Disconnect the battery connector from the motherboard.
Pull out two adhesive tapes. The battery can be removed.

LeEco Le Pro 3 comes with a 3.85V, 4070mAh Li-polymer battery.

The bottom board is integrated a vibration motor, a microphone, a USB Type-C port and a speaker, in the microphone and USB Type-C port around the silicone seal to prevent dust entering the fuselage inside.

From this picture, we can see that most main chips are covering with the metal shield.

Remove all screws securing the motherboard.
Disconnect the button module cable.

Here’s the button module.

Remove the motherboard.
On the back side of the motherboard, the fingerprint module cable is still connecting to the motherboard.

8MP front camera and 16MP rear camera.
The rear camera is using Sony’s IMX 298 camera sensor, F/2.0.

Qualcomm Snapdragon 820 CPU + Samsung 6GB RAM
Qrovo QM48184 RF chip
Skyworks 77643-21 RF chip
Qualcomm QCA6174A Wi-Fi
Samsung 64GB ROM

Qualcomm PM8996 power management chip
Qualcomm WTR3925 RF chip
Skyworks 77916-21 RF chip

Source: it168


  1. Hello, my screen cracked, do you think is posible to remove the screen from the lcd? Or is it better to buy a full lcd replacement? Thank you

    1. The display’s digitizer glass is fully laminated to the LED display. You will need to try to fully remove the UV bonding glue from the LED, (which can be done much more easily and safely with a chemical glue removal formula made for the purpose) and get fresh UV activated glue for the rebonding process. Suffice it to say, it would really be easier to get the pre-bonded assembly and just reinstall it that way. Just because it can be done doesn’t mean it will be easy, or free from flaws or damages in the UV glue removal or rebonding process.
      I am just living with the one crack running diagonally across my display since it doesn’t prevent touch function or straight on viewing of the display. I bought the glue and was going to buy the digitizer but, seeing the result of another inexperienced “repair tech’s” efforts, I decided to wait till I’m desperate.

      1. So giving more heat to it won’t make it easier to separate? I kind of mistakenly only bought the screen only and not the LCD and it is already shipped and I didn’t want to waste my money.

  2. Hello,
    I have the same Question. My Screen is Cracked as well.
    I Just want toll change the Front Screen LCD.
    Is it enough to disconnect the touch cable from the motherboard, after i Remove the two screws securing the metal plate?

  3. I have the le eco Max 2 amazing phone but the 3000mah battery I really want to try and put S3 pro 4000mah battery in the phone. Everyone say it can’t be done.. but the LeEco S3 is the same size in every way as S3 pro. So I want to know did they put a bigger battery in the S3 pro or is it just a higher quality battery? Really just wanted to order both and check the size but I can’t find them anywhere.. help!

  4. I unplugged my Leco 3 from the charger and it will not come on . Never had this problem before . What do you suggest I do ?

  5. My virtual buttons have been watered damaged and are now unresponsive and the led lights are defected. I wanna fix this problem. Can I replace the part myself,
    and if so where can I get the parts I need?

  6. Hi, David,
    The consensus among reviews of the LE Pro 3 is that it has FM radio capability. However, I do not see any chip mentioned in your article that supports FM radio. In your teardown did you find any such chip? I’m trying to build a kernel and support into Lineage-15.1 that supports FM on this device, but I don’t know which chip does the FM and so which driver and firmware to build in.

  7. You won’t be able I tried it the connector for the battery in the leeco pro 3 is bigger and it won’t connect with the s3.

  8. Hey,
    I Have le pro 3 AI, from 2 months I have a focusing problem, all my pictures from 10 cm are blurred.
    I bought from the internet the camera for the change it, but
    first, I’m not sure it’s a hardware problem.
    Second, it seems from your explanation than I have to break my screen to access the camera.
    Maybe you know about this problem and how to fix it?
    There is another way to access the camera like all other phones?
    Thank for your help

  9. Hi David, my lc3 pro phone has lost its gsm signal, I have tried a new sim card, etc. But nothing seems to work. Can you shed some light on it!

  10. Please how do I fix screen overlay issue with my leeco pro 3 AI phone
    I have tries all I know and failed, I installed a button unlocker app and it didn’t work please help

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