Root Thunderbolt bootloader option screen

jerster65 · Apr 12, 2011

So I'm a complete noob when it comes to rooting and the Thunderbolt is my first Android phone. I went to Droid-Life and I downloaded the easy root and ran rooted.exe by the time i got to step 2 though it told me to go to the bootloader screen and hit power and to wait for it to flash. Unfortunately, I have no idea what the bootloader options are. I tried holding the power button and powering off the phone but that's obviously not it. Thanks

Two_cents · Apr 12, 2011

to access Hboot(aka bootloader) you hold volume down and power button til a white screen pops up with 3 andy's on skateboards...

jerster65 · Apr 12, 2011

Thanks a lot, can you only use this method when it is plugged into the computer?

scotty85 · Apr 12, 2011

jerster65 said:
Thanks a lot, can you only use this method when it is plugged into the computer?

no,you can use it any time. just remember to delete the PB05IMG off of your sd card after you are rooted. if you leave it there,your phone will find it and try to update it everytime you enter hboot :eek:

jerster65 · Apr 13, 2011

Alright thanks, everything worked fine but when i got into the hboot the one click process told me to press power and to let the ROM flash, what is the power though andcan I get step by step instructions from what to do from there.

scotty85 · Apr 15, 2011

jerster65 said:
Alright thanks, everything worked fine but when i got into the hboot the one click process told me to press power and to let the ROM flash, what is the power though andcan I get step by step instructions from what to do from there.

oops,sorry i forgot to answer this yesterday :eek:

when the phone finds a file named "PG05IMG.zip" on the sd card after youve powered on into hboot,you will first see a blue bar as the phone reads the file,then a yellow bar(i think) as it checks it.

after the phone has deemed the file worthy of being applied as an update,it will prompt you "push power to update". this is why the directions are telling you to push power. to tell the phone to apply the update.

if youre not seeing any of the things mentioned above the reasons are:
1)the sd card is NOT formated FAT32
or
2)the file is incorrectly named. it must be EXACTLY named "PG05IMG.zip" or the phone will not see it.

a couple things regarding #2: the 3rd digit is a zero,not an "O". if youre using a windows machine,it is automatically adding the ".zip" to whatever you name the file. so if you typed in "PG05IMG.zip" the phone is actually seeing "PG05IMG.zip.zip" :eek:

hope that helps,if you hadnt figured it out allready. and again,sorry for the delay.

digdug1 · Apr 15, 2011

^^ almost exact scotty and a good writeup. just make the sure the file reads PG05IMG.ZIP

scotty85 · Apr 16, 2011

digdug1 said:
^^ almost exact scotty and a good writeup. just make the sure the file reads PG05IMG.ZIP

it just clicked that i was typing in PB05IMG... sorry for the confusion. :eek:

some eris and incredible residual info creeping out of my brain and onto the keyboard,lol... eris uses a PB00IMG and the inc uses a PB31IMG

edited for clarity. if you see it anywhere else let me know :eek:

mlee19841 · May 11, 2011

i get to the bootloader screen mine loads the blue bar on the side, then the yellow bar. Then thats all it does after that it goes back to the main bootloader screen, the one with fastboot,recovery,ect.. im lost why isnt it loading all the way??

mlee19841 · May 11, 2011

i just got and error it says main version is older update fail!!!!

scotty85 · May 11, 2011

mlee19841 said:
i just got and error it says main version is older update fail!!!!

try restarting your computer,and start the process over,especially if youre using the "easy root" method. i got that same message when i used easyroot,and thats what fixed.

mlee19841 · May 11, 2011

i go to the bootloader screen to load the downgrade everything goes through. i used the thunderbolt easy rooter program. the downgrade loads fine i enter into the root program again it says click step 2 to continue so i do and this is what comes up with and error. damn that i click step 3 and it just restarts the phone. thats all and the software version is still 2.2.1. any one have any ideas

scotty85 · May 11, 2011

for whateverr reason,step 1 isnt pushing the neccessary things to the phone,getting temporary root,and writing the misc image so that the downgrade can take place(thats why you get the main version older error).

a couple things come to mind... if you havent gotten adb set up and working there is a specific download you should have used.are you uisng the correct download? are you running the rooter from within your root.rar folder? you also might make sure the root.rar is stored somewhere simple... like the desktop,or root of your C drive. last and not least,i found it helpful to have an adb command window open so i could check and make sure the phone was being seen before running each step. if its not being seen,a pc reboot might fix,as well as simply unplugging and plugging in the phone.

other than that,i used the "easy root" method and didnt find it so easy. :eek:

if i were to do it again,id prolly just do it the manual way.

see this thread:http://androidforums.com/thunderbolt-all-things-root/322897-thunderbolt-rooting-methods.html

there are a couple videos that take alot of the mystery out of ADB,and using it to root,as well as a couple other easy root methods.

i would prolly reccomend if the above things dont help,that you try another method.

opossum · Sep 27, 2011

Howdy,

I was totally new as well. The thing I was missing was 'Hold the volume down + Power." I was simply holding the volume down + power not knowing it makes a difference.

Hold the down volume not the up volume...the portion of the key which makes the volume go down + power.

jerster65 · Sep 28, 2011

You dug pretty deep..

Root Thunderbolt bootloader option screen

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