Jun 10 AT 4:03 PM Sean Riley 26 Comments

HTC Thunderbolt MR2 update available for download now

The OTA is supposedly going to be hitting phones a little later in the month, but if your Thunderbolt is anything like mine (I had 4 reboots so far today) then I’m sure you can’t wait to get your hands on the cure.

The guys at Android Police broke this one and it is coming to you courtesy of Chingy and TeamAndIRC.

As Verizon hasn’t officially outed this update there isn’t a changelog yet, but the improvements experienced by those running it so far include:

  • No random reboots (HUGE!)
  • 3G/LTE Toggle (Settings>Wireless & networks>Mobile networks)
  • Improved signal strength
  • Improved GPS
  • New bootscreen
  • My Verizon app works properly
  • The “3G” logo in the notification bar changed (Not really an improvement, just different).

I performed the update myself and can attest that everything is working fine and I haven’t had any reboots yet anyway. The only downside I’ve noted is that I’m back to the old Android Market.

Before I get to the instructions please be aware that this is not just an OTA style update and so it will wipe all of the data on your phone. Backup anything you don’t want to lose. The update I’m linking to here is not for root users and will brick your phone if you are rooted. There are some ROMs based on this update for root users and if you are interested just hit up the source link for details.

With all of that out of the way if you are a stock user that wants to perform this update it is almost as simple as they come.

  1. Download the stock MR2 RUU file here
  2. Re-name the file to “PG05IMG.zip” (without the quotes)
  3. Move that file to the root directory of your SD card
  4. Turn off your Thunderbolt (Make sure you wait until it is all the way off)
  5. Hold the Volume Down button and Power button at the same time and keep holding them until the bootloader screen pops up (it’s a mostly white screen with the little skate boarding Androids at the bottom)
  6. Be patient on the bootloader screen as it will take about 15-20 seconds for the update process to begin automatically (This isn’t the actual update)
  7. After a couple minutes it will ask you “Do you want to start update?” and you should hit Volume Up for “Yes” (or Volume Down if you’ve chickened out)
  8. You can watch the thrilling process of the update or go do something else for about 5 minutes and when you get back you should see the message “Update Complete” at which point you just need to hit the Power button to reboot your phone and you should now be running your shiny new MR2 update.

If you have any questions before or after the update (or just want to share how awesome your phone is now) let us know in comments.

Source: Android Police

Sean has been with Android and Me for over 8 years and covering mobile for the last 9. He occasionally muses about gadgets and tech outside of the Android universe at Techgasms.

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  • http://www.twitter.com/dalex7777 dalex7777

    I have had my Thunderbolt since May 23rd. I have never had a random reboot.

    It has locked up twice and I had to reboot, but the Power/Lock button power-cycle was sufficient for this, no battery pull.

    I am not running the first OTA. Could it be that the shipping software is more stable than Thunderbolt+OTA? Or something else?

    • http://www.technogasms.com Sean Riley

      No, you’ve got it right. The shipping software was stable, it was the first OTA that borked things.

      If you are running fine on the original software I’d say stick it out for the next OTA.

    • http://Website lugnut26

      yes, the release software was more stable than the update, that’s the reason VZW didnt push it in waves as they did other updates, it was there to be downloaded if u wanted to ( which i stupidly did ) and ever since i instealled it my phone got screwed up w random reboots among other issues. I just verified that VZW will release their official update by the end of the month as per what i got from the twitter agent. I’ll have to wait to see if that fixes the replacement they sent becuase it too comes with the update unfortunately.

  • http://Website Will

    Can’t get it to update.

    • http://www.technogasms.com Sean Riley

      Where exactly are you running into a problem?

  • http://Website Dan

    And a new bootscreen, and MyVerizon finally works.

    • http://www.technogasms.com Sean Riley

      I’ll add them to the list. Thanks.

  • http://Website tg

    Want to update my girlfriends phone. Will this erase everything? Or just update and leave everything the same?

    • http://www.technogasms.com Sean Riley

      On the off chance that you aren’t joking, yes this will erase everything that she has on her phone. Obviously the sd card is safe, but any customizations or data on the phone itself will be gone.

  • http://Website Scott

    First, how do you know if you have the messed OTA besides the symptoms of reboots. Mine will reboot maybe twice a day at the most and not nearly as bad as others.

    Secondly, if you wait until the update comes out through the normal will it still wipe my phone?

    • http://www.technogasms.com Sean Riley

      If you aren’t having a ridiculous number of reboots or terrible connectivity than I would say just wait it out for the OTA, which will not wipe your phone. My phone was easily rebooting 5-6 times a day and my data connectivity was unreliable so anything was worth a shot.

  • http://Website Kevin T

    since doing the MR2 update, I cannot get certain aps on the android market, mlb at bat 2011 (just to name one) I don’t know what to do

    • http://Website Dan

      I’m just as bummed about At Bat. I’ve emailed MLB.TV asking when they’re planning on updating. I doubt I’ll hear back, though.

  • http://Website Rob

    This looks great!

    I have two quick questions:

    1) Does doing this update void the warranty (as rooting does)?

    2) Does doing this update manually mean that I won’t get the official update when it does come out? Will I forever be in manual update world from here on?


    • http://Website Rob

      Quick third question:
      What’s the MD5 checksum for the file? I have this:

      Thanks again!

    • http://www.technogasms.com Sean Riley

      Sorry I missed your questions yesterday.

      I’ll go ahead and say this won’t void your warranty in the sense that it wouldn’t be detectable to any CS person that you would be running into during a return or exchange.

      This should prevent you from getting the manual update, but the stock MR1 is floating around somewhere, so if you felt the urge you could track it down and flash your way back into the regular ota upgrade path.

      The MD5 checksum for the file I linked to in the post is 1239f430324f4fb3249ba3dfd3704ad7.

  • http://Website keith

    My question is….does this update fix the GPS issue?. When I turn on the GPS and use MAPS, it says “SEARCHING FOR GPS……”…..for like 5 to 10 mins. and then it kicks in.

    • http://www.technogasms.com Sean Riley

      I don’t believe I ever had that issue, but I can attest that GPS is locking on quickly and accurately for me with this update.

  • http://Website Ryan

    I did this update just now. GPS worked way faster but my free mobile hotspot trial got removed. Also the old market place showed.

    Having trouble with connectivity to Internet even though I had a 4G and 3G signal

    • http://www.technogasms.com Sean Riley

      As I said in the post, the old Market was the one downside for me. I’m not sure what to say about the mobile hotspot app disappearing. Do you have the rest of the Verizon apps, such as Vcast, VZ Navigator, and My Verizon Mobile?

      The connectivity issue is really odd as that was one of the prime annoyances that this update corrected for me. If that persists I would definitely take the Thunderbolt into Verizon and complain. They’ve been getting enough reports of Thunderbolt problems that my impression is they will replace devices without too much hassle.

  • http://Website Jimny Cricket

    I just updated this… i never did have rebooting problem. My problem was intermittent 4g connectivity. I am hoping this will solve it. At this time, I only have 3G. I will test it by forcing 4g connection.

    The navigation which was slow in loading is not loading at all at this time. I will re-boot my phone manually to see the result.

  • http://Website James

    i renamed the file to PG05IMG.zip and put it on the memory card, but when i hold down the power and volume button the bootloader comes up but doesnt begin updating at all…??

  • http://Website john Norquay

    I dragged and dropped the PG05IMG.exe file onto my android drive and it is listed near the bottom after all the different files are listed.
    I shut the phone down and turned on to the boot screen with the little droid with skateboards.
    Nothing begins automaticaly after waiting for minutes.
    I have a list of things to do like Fastboot, Recovery, etc.
    What have I done wrong?

    • http://www.facebook.com/brycebloodphotography BryceBlood

      John… Might be because you are trying to use a .exe extension? Don’t unzip it. Just rename it to PG05IMG.zip then load it to the root of your sd card. Reboot holding down the vol key and it should work. .zip not .exe

  • http://softwareupdateenabler Sherrill Kirt

    Good stuff man, funny like me :) Check out my blog if ya have time, feedback welcome http://www.pablosworld.co.uk

  • MandiB2010

    I know I’m a little late in asking, but I bought a ThunderBolt off ebay recently and I think it missed all the earlier updates. It is currently running software number 1.66.605.2 and that doesn’t appear to be new enough to try & upgrade to Gingerbread. Can I go back and download earlier updates or is it too late? I don’t have any issues with random reboots, but the main thing I’ve noticed is no visual voicemail, no option for the verizon vvm in the market and no clue why it isn’t available.
    I am definitely a newbie as far as trying to update a used phone and/or rooting a phone, but probably smart enough to do whatever is necessary if someone can just point me in the right direction.