Solved - Xiaomi Mi 4w (overseas Edition) Doesnt Start/boot Anymore

[skonteron]

Hi Community,

i got the new phone Xiaomi Mi 4w on wednesday from asia. It has only Kitkat so I first flashed it to Miui 5.12.17 (flashed it twice, because to the changes of the partitions). After flashing it to 5.12.17 everything worked so I decided to updated to 6.1.21.
After that the ROM bootet normally so I put the phone back in this box. After 8 hours I want to show my girlfriend here new phone but it doesnt start anymore. I start recharging the phone 22 hours ago but:

• The recharge LED does not turn on
• Tried different recharging devices -> but nothing happens
• After a few hours I tried so start the phone again - but nothing happens.
• Tried to press Power + Volume up / Volume down - > but nothing happens
• Pressed Power for more then 60 seconds -> but nothing happens

Any other ideas?

 

[skonteron]

A friend of mine managed to get it started. He connected the phone to his PC and then the phone booted into FastbootMode. After 15 hours charging the phone had just 10% Accu.
Its just strange that it booted then its connected to the PC.....

 

[gupo88]

how did you connect to pc??

 

[skonteron]

He just conneced the phone via USB to the PC - nothing special. This made me a bit crazy... after all the hours i spent