[Q] OTA ICS 4.0 Failed HTC Sensation:: Status 7 (Maps.apk)

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I've been trying to install ICS OTA for last couple of day...
I did Factory Reset Data,, formatted the SD Card and downloaded all the updates from 1.35.707.1 to 1.50.707.1

I downloaded the update around 10 times but every time i encountered the same problem.

I would highly appreciate if anyone could help...Contacted HTC and done all what the said to do...(Factory Reset Data, SD Card Format etc.)

here is the installation message i see when i press the Volume Up +Power button, once stuck at red triangle icon.

--Install /sdcard ...
Finding update package...
Opening update package...
Verifying update package...
Installing update...
Copying fotaBoot to /data/system for customize reload...
Verifying current system...
assert failed: apply_patch_check("/system/app/Maps.apk","3ae09b2fee344a1d13930ea36b8cf9791d06e10 a","cafac724385e245557e1f969eca53713cea10438")
E:Error in /sdcar/OTA_PYRAMID_ICS_hTC_Asia_WWE_3.32.701.10_R-1.50.707.1_release_2515911s4ge59w5atckzzw.zip (Status 7)
Installation aborted.


Talked to HTC Support via Web Chat.... They suggested to Format the SD card with Fat32 and try to install.. did so and no new result.

Other option suggested by HTC Help is to factory rest... which i did... No different.

Install Maps ...

just update the google maps to 6.5.0 and tried installing the OTA for ICS... same result.

Solution

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There is only one solution:
you have to find your original Maps.apk and restore it in the correct location.
often Maps.apk is wiped by rooting scripts to free-up space.

your Maps.apk MUST have this SHA1 hash: cafac724385e245557e1f969eca53713cea10438

1) download your old original ROM
2) extract from system.img the Maps.apk file
3) verify the SHA1 hash of the file
4) if you found the correct file, copy it in the /system/app folder of your mobile, you must use a software able to mount the system partition as writable, like ES file manager ( take a look at settings )
5) reinstall the OTA update