I tried to update my unlocked Lumia 640 to Win 10 today. It was caught in the reboot loop for about an hour. So I tried the hard reset and that did nothing. I then tried using the Device Recovery Tool.
During that apparently the phone went into the restart loop and now the phone is dead, except when I hold the down volume and power button for 2 minutes. Windows sees the phone as a QHSUSB_BULK Device but the emergency flash fails? It starts a log and then just stops working for some reason, I can't understand. Although I did notice that once during the flash the phone disappeared from the USB listings.
I have tried the emergency flash after leaving the battery out for an hour as suggested on some sites. I have tried with no sim card. I have tried with no sd card. I have tried without either card. I even uninstalled and reinstalled the recovery software...?
Since it is unlocked I didn't try it with the sim that came from AT&T as I don't want the phone to be locked with AT&T again.... Even though I have still have the original code sent from AT&T, but have no idea if that would unlock the phone again?
So is there some trick I have missed or do I start shopping for a new phone?
During that apparently the phone went into the restart loop and now the phone is dead, except when I hold the down volume and power button for 2 minutes. Windows sees the phone as a QHSUSB_BULK Device but the emergency flash fails? It starts a log and then just stops working for some reason, I can't understand. Although I did notice that once during the flash the phone disappeared from the USB listings.
I have tried the emergency flash after leaving the battery out for an hour as suggested on some sites. I have tried with no sim card. I have tried with no sd card. I have tried without either card. I even uninstalled and reinstalled the recovery software...?
Since it is unlocked I didn't try it with the sim that came from AT&T as I don't want the phone to be locked with AT&T again.... Even though I have still have the original code sent from AT&T, but have no idea if that would unlock the phone again?
So is there some trick I have missed or do I start shopping for a new phone?
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