1. James Taylor25's Avatar
    Hello,

    I've had my s4 for a year now and not a single problem. Then last night I had an OTA update come through for Lollipop 5.0.1 (previously I was on kitkat, cant recall exact version). I've installed it and immediately notice that the back and menu buttons do not work, they dont even light up anymore. I have tried restarting the phone, full charging the phone and trying safe mode, none of which worked.

    I have Nova installed and switched to the generic home software to see if that worked but to no avail.

    Is there anything I can do? If rooting was an option, I would rather not as I don't want to loose access to my online banking or Sky Go.

    Thank you.
    11-22-2015 03:23 AM
  2. B. Diddy's Avatar
    Welcome to Android Central! Try wiping the cache partition: http://support.t-mobile.com/docs/DOC-5744
    11-22-2015 01:47 PM
  3. James Taylor25's Avatar
    Thanks b. Diddy. I have tried this but to no avail.

    Thanks,
    James.
    11-22-2015 04:31 PM
  4. B. Diddy's Avatar
    Can you try reinstalling the firmware using Kies or Smart Switch?
    11-22-2015 04:40 PM
  5. robertandrewbain's Avatar
    I had the same issue last night when upgrading a Galaxy S4 to the latest over the wire Lollipop version.

    The issue is caused by the firmware version for the buttons - I noticed a few people having similar issues on my travels. I downgraded to the version of Lollipop released in February, which I found at sammobile dot com slash firmwares.

    I signed up for the free account (says download will be 15kbps but was 300kbsp) and followed the instructions using their downlink link to Odin. I had one problem during the "optimising applications" phase of the installation where it would hang with an error which I now forget but performed a factory reset and everything is working now. This problem seems so common, I wouldn't be Surprised if Samsung issue a hotfix soon.
    B. Diddy likes this.
    11-24-2015 03:40 PM

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