Cannot update firmware on stock Sprint Hero

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Please help out my coworker has a stock Hero on sprint and we are unable to update the firmware. I was able to update mine, our demo and one other co-worker's phone but on hers, every time I actually go into the firmware update it states no updates available. Sadly we work for a sprint store and hers is the only one giving us an error. I've already gone to the point of wiping the device to restore to factory but with no avail. Aside from having her swap out the phone at our repair center, I wanted to see if anyone has had the same problem and was able to get passed it. I saw a couple of posts stating to use the RUU utility, but on a stock rom that we already "RTN'd" I don't know how that would help. Any help would be greatly appreciated.

I've seen something similar. A coworker of mine just got a hero last week (after the MR release) and her phone shows the older software version but it will not recognize a firmware update is needed. I checked the phone's awake time and it was low, indicating the messaging app was not keeping the phone awake or draining the battery so I assumed it must not need the MR update even though it shows the old software version.

A couple others have metioned this... For some reason, some phones shipped with older firmware, version 1.22.651.1 instead of 1.29.651.1. Doing a hard reset on the 1.22 version wouldn't help, but updating the firmware to the 1.29 should. After that, check for the official MR.

You can find the file over here:
ftp://xda:xda@ftp.xda-developers.com...ed_release.exe

http://forum.xda-developers.com/showthread.php?t=559622

the guy at the sprint store (3rd party store) where i got mine from , his hero will not update or even flash back to the stock sprint ruu everytime it downloads the update and goes to apply it it shuts the phone down and thats it no reboot have to pull the batt to get it to power back on again

I had the same problem. I got my Hero on the first day it came out. Every time I tried to download the firmware update it would say no update available. Took it to the Sprint store and no luck either. They finally swapped out my original Hero for a new one and I was past my 30 days.