@ Manngo, I dont know what is causing the error during your update, but you have a outdated firmware and id recommend updating, however i have the same exact phone version and this is what i did to get rooted with custom rom
Originally Posted by btdag
I. Installing a Recovery Image
1. On your phone, go to Settings > Applications - and make sure "Unknown Source" is ticked.
2. On your phone, go to Settings > SD card and phone storage - click Unmount SD card.
3. Then click Format SD card.
4. Plug the phone into the computer via USB, then pull down the notification bar and click on the SD card notification. Then click mount.
5. Download this APK and recovery image and save it to your computer:
http://zenthought.org/content/project/flashrec - FlashRec.apk
http://forum.xda-developers.com/showthread.php?t=561124 - Amon_Ra’s Hero Recovery Image
6. Copy them both to your SD card (do NOT put them inside any folders on the SD card, just put them on the SD card itself).
7. Unplug the phone from the computer once they are downloaded to the SD card.
8. Go to the Market and download ASTRO File Manager or any file manager program if you do not already have one.
9. Open the file manager and find the FlashRec apk file and click it and choose open app manager and then install it.
10. When it is installed click Open. Click on Backup Recovery Image and wait for it to finish. If you get "backup failed" response see the text on the right for more details, if the backup is a success carry on to step 11.
a. Installing the correct HTC ROM
Orange UK Users - Please downgrade your ROM version to 2.73.61.5
Generic Hero Users - Please downgrade to 2.73.405.5, or follow the goldcard method if this doesn't work
T-Mobile UK Users – Please follow the "Goldcard" method below
All Other Users - Please follow the "Goldcard" method below
11. Once done, click on the empty text box in the FlashRec program and type:
/sdcard/recovery-RA-hero-v1.6.2.img
(replace exact name as new versions come out)
Then click on the Flash Recovery Image button and wait for it to finish.
Ok next follow Updating your radio, then Install your custom rom sections of
http://forum.xda-developers.com/showthread.php?t=645253
You dont have to flash a custom rom, you can use any rom in a zip format for htc hero gsm. You can follow the quick guide on the first post if you want the original 2.1 singapore version.
It really a very simple process that involves a lot of baby steps, heck i even did it, and ive been flashing a bunch of different roms ever since. GOOD LUCK
You can always use a sd card adapter to put the files onto your sd card instead of using a usb cable to transfer the files, thats what i did