HTC Butterfly 3 Stock Firmware OTA Updates
Flash through Fastboot.
1: download the firmware you fit their machine parameters and rename the new file to download to firmware.zip, then copy it back to the Fastboot folder on the C drive of your computer.
2: Turn CMD -> type cd c: \ fastboot, and put the phone in bootloader → Connect the phone to the computer, ensuring USB Fastboot red line currently offline.
3: For S-ON machine must relock Bootloader Light: fastboot OEM lock → Enter
(The machine will restart, go back Bootloader check relock it was not if OK then continue)
– Step 4: Put the computer to the flash mode Ruu: fastboot OEM reboot RUU → Enter
(HTC ONE will show white HTC logo)
5: Flash Firmware 1st: fastboot flash zip firmware.zip → Enter
6: Flash Firmware 2nd: fastboot flash zip firmware.zip → Enter
(Wait for it to run for about 1 minute, press Finish Fastboot screen on your phone but still running then you just let it be. Use the Power button to reset the phone always is.)
Method 2: Flash by Hboot in Bootloader
1: relock Bootloader.
2: Rename the Firmware File 0PL2IMG.Zip (0 here is 0) then copy it to the memory card.
3: Launch into Bootloader machine will automatically load selected Hboot 0PL2IMG file .zip (to the loading bar top right corner of the screen)
4: when the flash is complete the machine will reset.