Yesterday I tried to upgrade to windows phone 10 technical preview, but it got stuck on cog wheel page screen with no progress for 2 hours.
I searched a bit on net and found that removing the sd card helped, so I removed the battery between update and removed the battery and then sd card, and rebooted the device. This time it progressed but after some time it stuck in a boot loop, where it would repeatedly restart to cog wheel screen.
I tried all the reset options on the net, but it didn't work. Finally I decided to roll back to windows phone 8.1, using windows phone recovery tool. It successfully started, downloaded required file, started installation and then showed an error and after that it is stuck on a red screen with large NOKIA logo on it.
I have tried everything given here
goo.gl/UVSjQi (xda thread)
goo.gl/A8ltgT (step by step process on how to recover bricked windows phone) and a lot more places.
I think the problem is they want the device to be connected as "QHSUSB_DLOAD" but my lumia 520 is detected as "NOKIA FLASH" in windows 10, and it gives error while trying to write data to phone.
I'm trying the same process in windows 8.1 virtual machine, as I post the question here.
F.A.Q.
1. The phone in question is lumia 520
2. On pressing volume down and power key, it reboots to red screen.
3. No I didn't hard reset the phone before starting to upgrade to windows 10 technical preview.
I searched a bit on net and found that removing the sd card helped, so I removed the battery between update and removed the battery and then sd card, and rebooted the device. This time it progressed but after some time it stuck in a boot loop, where it would repeatedly restart to cog wheel screen.
I tried all the reset options on the net, but it didn't work. Finally I decided to roll back to windows phone 8.1, using windows phone recovery tool. It successfully started, downloaded required file, started installation and then showed an error and after that it is stuck on a red screen with large NOKIA logo on it.
I have tried everything given here
goo.gl/UVSjQi (xda thread)
goo.gl/A8ltgT (step by step process on how to recover bricked windows phone) and a lot more places.
I think the problem is they want the device to be connected as "QHSUSB_DLOAD" but my lumia 520 is detected as "NOKIA FLASH" in windows 10, and it gives error while trying to write data to phone.
I'm trying the same process in windows 8.1 virtual machine, as I post the question here.
F.A.Q.
1. The phone in question is lumia 520
2. On pressing volume down and power key, it reboots to red screen.
3. No I didn't hard reset the phone before starting to upgrade to windows 10 technical preview.
