How to solve the 2.1 "brick" after ota update

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g0mib0y

Senior Member
Aug 28, 2006
134
2
48
EDIT: DON'T UPDATE TO 2.1 AGAIN SINCE IT WILL HANG ONE MORE TIME. WAIT FOR HTC TO RESOLVE THIS ISSUE!!!!!!

EDIT 2: BACK UPP ALL YOUR DATA FROM YOUR MEMORY CARD FIRST!!!

EDIT 3: How did I find this out? I talked to a very helpful HTC suport rep (yes they do actually exist in Sweden). He helped me do these steps and so I thought I should share this.


Ok so you got a message that 2.1 was available for your Hero - FINELY! and you installed it using OTA. And then you got a triangle with a ! in it and you rebooted and all it says is "HERO".

This is how to solve it!

Take out your memory card. FORMAT TO <span style="font-weight:bold;">FAT32</span>!!!

Download the RUU 2.73.405.5 from HTC support homepage

Run the installation.

When it fails to find your phone <span style="font-weight:bold;">DON'T EXIT!!!</span>

If you are using Windows 7 go in to c:\Users\<span style="font-style:italic;">yourusername</span>\AppData\Local\Temp

Search for ROM.zip

Move to desktop

Rename to HEROIMG.zip

Transfer to your newly formated memory card now with FAT32 file system

Put memory card into phone

Start phone holding volume down pressed.

It will now check zip fil and then ask if you want to install.

homekey for YES

After installing you have 1.5 again and can safely upgrade to 2.1 OTA
 
Last edited:

dkelley

Senior Member
May 11, 2010
2,959
190
Maple Ridge (close to Vancouver)
seriously.. that's complex... LoL

and you figured this elaborate method out... how?

I mean, thank you, I'm sure people will find this helpful. It just doesn't seem like the sort of thing you'd just randomly work out yourself. How did you figure it out? if it was by trial and error then my sympathies go to you and how much time you must have spent!

cheers
 

ticho

Senior Member
Jun 16, 2010
81
0
127.0.0.1
You should probably add "back up data from your sdcard" as first step, as I can easily imagine some total newbie being surprised that all of his data are suddenly gone. :)
 

g0mib0y

Senior Member
Aug 28, 2006
134
2
48
seriously.. that's complex... LoL

and you figured this elaborate method out... how?

I mean, thank you, I'm sure people will find this helpful. It just doesn't seem like the sort of thing you'd just randomly work out yourself. How did you figure it out? if it was by trial and error then my sympathies go to you and how much time you must have spent!

cheers

Se my EDIT 3 in first post :)
 

kalagas

Senior Member
Dec 25, 2006
2,873
2,261
Crete
www.foodsafe.gr
Is this another method to downgrade??? I mean i have made OTA update successfully but now i want to downgrade to root my phone and i tryed everything, even GoldCard method, but nothing happens. When i try to install an older ROM to root it first and then use one of 2.1 allready rooted ROMs from this forum, I get always an error message that can't connect to my phone and also HTC Sync doesn't work...
So i'll try this method to see if i can downgrade my Hero...
 
Last edited:

2300s

Member
Apr 19, 2006
11
1
2300 S
Currently trying this out on my Hero "locked/unrooted" by the 2.1 OTA update.
As stated in post 1 - remember to rename the file before copying to SD - if not the device will not find the file.
 

2300s

Member
Apr 19, 2006
11
1
2300 S
Success - back on 1.5
Got a OTA prompt on first boot.
Now going to root and install a pre-rooted 2.1 image
 

kalagas

Senior Member
Dec 25, 2006
2,873
2,261
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www.foodsafe.gr
Ohhhhhhhhhhh!!!!!!!!!!!11
Finally it seems that an employ of HTC Sweden gave as the solution to downgrade our Hero so we can root it....
A question: The ROM.zip which creating when you try to flash RUU_Hero_HTC_WWE_2.73.405.5_WWE_release_signed_NoDriver.exe is unique for every phone or we can rename it to HEROIMG.zip and upload it somewhere so everybody who made the OTA update to official 2.1 could use it?????
 

2300s

Member
Apr 19, 2006
11
1
2300 S
Flashed a rooted 2.1 - works perfectly
This is the way to go for those that fails to see the warning against installing the 2.1 OTA on a rooted 1.5
 

2300s

Member
Apr 19, 2006
11
1
2300 S
Which official Rom did you use to create ROM.zip and which 2.1 rooted Rom did you use after???

To create the ROM.zip i used:
RUU_Hero_HTC_WWE_2.73.405.5_WWE_release_signed_NoD river.exe
from:
ttp://forum.xda-developers.com/showthread.php?t=559622

Current 2.1 ROM is from:
ttp://forum.xda-developers.com/showthread.php?t=714075

Sorry - not allowed to post links
 

rex_123

New member
Jul 2, 2010
2
0
Better Faster Easier way

When your phone go into triangle with ! do this
1. remove the battery
2. press vol down + power
3. press back to go to fastboot
4. connect phone to pc
5. double click on ROM 2.73.405.5 from HTC
it will update to the original rom and you r done :D
 

Serial12

Member
Jul 3, 2010
22
0
Sorry beforehand if I have fail to make the correct assumption..

but is it possible to return to 1.5 from 2.1 on a unrooted/unbranded hero?
 

mac1929

Member
Oct 27, 2008
17
3
So I suppose this method can also be used to flash a custom rom without a custom recovery...
 

kalagas

Senior Member
Dec 25, 2006
2,873
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www.foodsafe.gr
I didn't test that. I only downgraded from original and unrooted 2.1 to 1.5 and then I used a recovery image to pass a rooted 2.1

Sent from my Milestone using Tapatalk
 

dkp02

Member
Oct 18, 2009
7
0
Unable to downgrade

I have the the original HK 2.1 update. I have managed to run the RUU which you suggested above. I have also managed to locate the ROM ZIP and change it to " HEROIMG.zip" which was sucessfully detected.

The update process starts automatically and after a few minutes I get an error message - UPDATE FAILURE- saying that " THE MAIN VERSION IS OLDER!".

Please help.

Many thanks

Darren
 

casca

Senior Member
Oct 3, 2006
1,119
72
Lisboa
I have the the original HK 2.1 update. I have managed to run the RUU which you suggested above. I have also managed to locate the ROM ZIP and change it to " HEROIMG.zip" which was sucessfully detected.

The update process starts automatically and after a few minutes I get an error message - UPDATE FAILURE- saying that " THE MAIN VERSION IS OLDER!".

Please help.

Many thanks

Darren

Which one of these Asian versions did you install?
RUU_Hero_hTC_Asia_HK_WWE_3.34.721.1_R_Radio_63.18.55.06P_6.35.15.14_release_signed.exe
RUU_Hero_hTC_Asia_India_3.31.720.2_R_Radio_63.18.55.06O_6.35.15.01_release_signed.exe
RUU_Hero_Chunghwa_3.31.751.1_R2_Radio_63.18.55.06O_6.35.15.01_release_signed.exe
RUU_Hero_Chunghwa_3.31.751.1_R_Radio_63.18.55.06O_6.35.15.01_release_signed.exe