Need help UNrooting

[Guest tatey2457]

My phone came from T-mobile, I have a H-boot of 0.75 and have rooted using the R1 method but it will not allow me to run the offical T-mobile RUU.exe. I have tried extracting the rom.zip and flashing via recovery but it fails to open the .zip saying it is bad??

I have a working goldcard and can flash any other rom except for the offical branded one.

Someone please help

Edited May 31, 2010 by tatey2457

[Guest tatey2457]

Anyone??

[Guest EddyOS]

You sure you've got HBOOT 0.75 at present? Sounds like you're on 0.80. Which ROM are you using?

Edited June 1, 2010 by EddyOS

[Guest tatey2457]

On the H-boot screen it say's

BRAVO UNKNOWN SHIP S-ON

HBOOT-0.75.000

I'm trying to flash RUU_Bravo_TMO_UK_1.15.110.11_Radio_32.30.00.28U_4.05.00.11_release_122755.exe

Edited June 1, 2010 by tatey2457

[Guest SgtDavePwnage]

On the H-boot screen it say's

BRAVO UNKNOWN SHIP S-ON

HBOOT-0.75.000

I'm trying to flash RUU_Bravo_TMO_UK_1.15.110.11_Radio_32.30.00.28U_4.05.00.11_release_122755.exe

Hello

You need to put the zip file onto your sdcard and call it PB99IMG.zip and boot your phone into the bootloader :(

[Guest tatey2457]

Hello

You need to put the zip file onto your sdcard and call it PB99IMG.zip and boot your phone into the bootloader :(

Thank you very much, will give that a shot now...be back in a min to let you know how it went

[Guest tatey2457]

My hat comes off to Sgtdave, thank you!! Worked a treat

[Guest StuMcBill]

Hello

You need to put the zip file onto your sdcard and call it PB99IMG.zip and boot your phone into the bootloader :(

Out of curiosity, what is the significance of the file name PB99IMG.zip? (I know that is what the Bootloader tries to load automatically) But is there any reason that HTC have used that filename?