Download partitions for your device, depending on firmware:
v. 1.0.07-eu:
https://mega.nz/#F!NNUFCKAI!kV3Kr2Zvsa87_tFiDxOORw
v. 1.0.05-eu:
https://mega.nz/#F!VZUlXYLS!LRPiGWlj5JMYhs-GBYzDRg
Get microSD card, format it FAT32
download & unpack
https://projects.mobileread.com/read...upor-rescue.7z
Put 'OS Firmware' folder in the root of SD card
Make sure PRS-T1 is turned off
Put microSD card in PRS-T1
Hold Home (middle) and Menu (most right) button, keep them pressed
Insert USB cable
Release buttons after Windows initializes the PRS-T1 with a sound (dong/bell)
Check Device Manager in Windows 10, check ports, see COMX port
Download & open putty
https://www.putty.org/
Select COM connection, type in COMX and press Open
Login to the PRS-1 with user root, enter
Type/paste the following commands and hit return after each line:
cd /initr/mnt/sd
dd if=disk3s1.bin of=/dev/mmcblk2p1
dd if=disk3s2.bin of=/dev/mmcblk2p2
dd if=disk3s4.bin of=/dev/mmcblk2p4
dd if=disk3s5.bin of=/dev/mmcblk2p5
dd if=disk3s6.bin of=/dev/mmcblk2p6
dd if=disk3s7.bin of=/dev/mmcblk2p7
dd if=disk3s8.bin of=/dev/mmcblk2p8
dd if=disk3s9.bin of=/dev/mmcblk2p9
dd if=disk3s10.bin of=/dev/mmcblk2p10
reboot
All should be OK now.