Thursday, February 18, 2016

Dead Lenovo A850, Not Detected When Connected To PC

I have done FORMAT + DOWNLOAD A850 ROW rom to my Lenovo A850. But sadly, it is the wrong firmware. Supposed I need to select CN rom to my phone. After flashed ROW rom, the phone is dead = not detected by PC when connected with USB cable, no boot up.

So, I googled for solution, and found out with this link.

So, my solution based on those links is:-
1) Power off phone.
2) Press VOLUME UP + VOLUME DOWN while connecting USB cable to PC and phone.

Now the phone is detected by PC and I can flash another rom then.

Friday, February 5, 2016

GYM8511ML UV Sensor Connection To Arduino Nano

- This sensor is to detect 280-390nm light.
- I bought my sensor from E-Bay (, seller information "alice1101983".
- Nothing much info from seller's page. Googled and downloaded sample code from "".
- My connection shematic as below:-
- Hope this information helps.