Help needed. Reflash stock, now stuck on Welcome Screen. No touch screen to progress

[ddettmer]

Help needed. NEWBIE alert.
Last week I unlocked my UK G4+ and failed to install SuperU and ended up with a brick. Got it back working using a script to reflash to stock and it was all working fine.
So today tried to install a custom rom and again it killed the phone.
Again, wiped the phone, reflashed as before to stock, now stuck on the Welcome Screen. No touch screen to progress.
When I press the power button, the Power Off prompt comes on and I can power off. So the tough screen is working for that.
I am getting these fastboot errors but carried on anyway.
GPT.BIN
(bootloader) Preflash validation failed
FAILED (remote failure).

How can I get the UK phone back to Stock?

 

[Lyuu]

What's your XT model? (in the battery it says the model)

 

[ddettmer]

XT1642
I just want it back to original stock and locked now.

Thanks

 

[daverobinson88]

Try this YouTube video. Make sure you get the correct firmware. This worked for me with no issues. Also make sure you have the correct drivers.

 

[ddettmer]

thanks, i'll take a look

 

[Lyuu]

Stock ROM: http://www.filefactory.com/file/1pq...24.139-23.4_cid50_subsidy-DEFAULT_CFC.xml.zip
Commands:

fastboot oem lock begin
fastboot oem lock begin
fastboot flash partition gpt.bin
fastboot flash bootloader bootloader.img
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash dsp adspso.bin
fastboot flash oem oem.img
fastboot flash system system.img_sparsechunk.0
fastboot flash system system.img_sparsechunk.1
fastboot flash system system.img_sparsechunk.2
fastboot flash system system.img_sparsechunk.3
fastboot flash system system.img_sparsechunk.4
fastboot flash system system.img_sparsechunk.5
fastboot flash system system.img_sparsechunk.6
fastboot flash system system.img_sparsechunk.7
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot erase userdata
fastboot erase customize
fastboot erase clogo
fastboot oem lock