Damaged Extended ROM - no boot

[Lurker0]

Tried the last build of SK Tools to benchmark unlocked Extended ROM. It hung in the middle. After soft reset, the phone hung on the HTC splash screen, WM splash will not show up. Hard reset restored phone boot, but unlocking the Extended ROM leaded to the same hang.

I've downloaded a version of my ROM, and, using the tools and instructions from Wiki, extracted extended ROM nb, and created an NBH containing only Extended ROM. Flashed it using SSPL from MicroSD. Then restored the latest backup and the phone is up and running again!

All was done using Windows 98SE computer, so no ActiveSync working.

So, this is one more reason why phone may hang on HTC boot screen that is not in the Wiki.

I just wonder what does the number (700 to replace 900) in the text file to pass to nbhgen mean, but it work.

[mshagg]

I had a similar thing, the phone hung whilst writing something to extended ROM. It would then not go past the HTC splash. Like you, i got a bit nervous when i realised this wasnt addressed in the wiki!

I took a slightly different approach, using mtty.exe and 1.01mfg bootloader to flash a new extended rom to the appropriate address. Let out a real cheer when i saw the windows mobile splash appear!

[Arktronic]

Could one of you add this to the wiki perhaps?

[pof]

I just wonder what does the number (700 to replace 900) in the text file to pass to nbhgen mean, but it work.

Header type for ExtROM inside NBH file is 0x700 for Hermes, 0x900 for Trinity.

See here:
http://wiki.xda-developers.com/index.php?pagename=NBH_headertypes

[mshagg]

Could one of you add this to the wiki perhaps?

Would love to contribute!

But which section? This isnt an upgrading problem per-se... its more to do with writing to the Extended Rom and dramas which arose because the phone hung whilst doing so.

[Arktronic]

That section could be renamed to something more generic, although I'm not sure that's a good idea. For now, you could just add it in there, it's possible to come up with a reason for it being an "upgrade" ;)

[mshagg]

OK, ive put it on the problems page, under "other problems".

Have never edited a Wiki before, please feel free to dress it up a little (i.e. i dont know how to turn words into links to other wiki pages, nor do i understand how formatting works etc etc).

Cheers
Martin

[Arktronic]

I fixed it up a bit; thanks for the writeup!

[mshagg]

I fixed it up a bit; thanks for the writeup!

No, thank you mate! Looks much better.

Cheers!!