Downgrade and unlock sim - myTouch 4G Q&A, Help & Troubleshooting

So I'm running vu 2.39 on my phone and I had rooted the phone using the root.sh/visionary method, not the gfree method. Now that I'm comfortable with it, I was trying to figure out how to unlock my phone. After backing up my phone, should I install the rooted stock rom, unroot using visionary, and then root using the gfree method OR install an unrooted stock rom (which I assume will restore everything back to factory) and then gfree OR something else??
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htc_sandman286 said:
So I'm running vu 2.39 on my phone and I had rooted the phone using the root.sh/visionary method, not the gfree method. Now that I'm comfortable with it, I was trying to figure out how to unlock my phone. After backing up my phone, should I install the rooted stock rom, unroot using visionary, and then root using the gfree method OR install an unrooted stock rom (which I assume will restore everything back to factory) and then gfree OR something else??
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Click to expand...
Click to collapse
they have instructions on how to unlock in the gfree thread...

I think gfree only works with froyo kernels. It wasn't working correctly for me on virtuous
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You need to flash not only the stock 2.2.1 ROM but also the appropriate bootloader and possibly radio, to run Gfree. The easiest way to get all of that at once is to PD15IMG.zip or RUU back to that ROM after doing your nandroid backup. Then follow the full instructions for temp root and Gfree, and that's when you can enter the command that gets Gfree to SIM-unlock your phone. Once you've installed Clockwork again, revert to your nandroid backup.

cmstlist said:
You need to flash not only the stock 2.2.1 ROM but also the appropriate bootloader and possibly radio, to run Gfree. The easiest way to get all of that at once is to PD15IMG.zip or RUU back to that ROM after doing your nandroid backup. Then follow the full instructions for temp root and Gfree, and that's when you can enter the command that gets Gfree to SIM-unlock your phone. Once you've installed Clockwork again, revert to your nandroid backup.
Click to expand...
Click to collapse
K cool this makes sense but is the PD15IMG.zip the rooted stock Froyo or unrooted stock froyo?
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htc_sandman286 said:
K cool this makes sense but is the PD15IMG.zip the rooted stock Froyo or unrooted stock froyo?
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Click to expand...
Click to collapse
Pure stock, just like how you first bought it from Tmobile.
If I helped, give thanks, if you please.
Sent from my fist to your nuts, enjoy!

great so i made an attempt to downgrade but i ran into a problem...i downloaded a stock rom, checked the md5 sum, and then tried to install following instructions but it turned s-on, reverted the h-boot version to 0.86.0000 and says main version is older, update fail!.... the rom is still rooted cause i used root checker to check and cwm 5+ is still installed so now i dunno what to do...

I followed this yesterday from stock 2.3.4 unrooted and it worked. Its rooted running Virtuous unity, and unlocked I tried my friends simple mobile sim and it worked.
http://theunlockr.com/2011/10/25/ho...ire-z-desire-hd-and-mytouch-4g-back-to-froyo/
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Oh crap... I forgot that could happen after root.sh.
Check the downgrade guide - if you're rooted with S-ON the only step you should need to do is the misc version step, and then you should be able to flash the PD15IMG.ZIP again without getting the main version error.
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http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#Rooting_the_G2
Thanks to the guys in the G2 IRC chatroom, i was able to fix the problem and unroot using the gfree method!!! made 1-2 silly noob mistakes and it costed me time and hrs, but a good lesson learned.

htc_sandman286 said:
great so i made an attempt to downgrade but i ran into a problem...i downloaded a stock rom, checked the md5 sum, and then tried to install following instructions but it turned s-on, reverted the h-boot version to 0.86.0000 and says main version is older, update fail!.... the rom is still rooted cause i used root checker to check and cwm 5+ is still installed so now i dunno what to do...
Click to expand...
Click to collapse
Made a thread for this exact problem a couple days ago. Here you go..
http://forum.xda-developers.com/showthread.php?t=1356607
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Related

Problem rooting new MT4G

I have a red mt4g and is rooted no problem running cm7. My wife picked up a mt4g and wants rid of the sense crap. I've tried everything and can't get root to stick. I've been reading the threads and am curious people mention your phone being pre-ota. What ota update are they referring to. Only thing I've noticed is my phone is PVT ENG and hers is PVT SHIP.
Any thoughts?
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Edit. I'm an idiot forgot to turn fastboot off
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Nevermond its just not taking root. Here's her boot
GLACIER PVT SHIP
HBOOT-0.86.0000
Update 2.2.1
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Shortly after receiving my MT4G there was an OTA update. Supposedly this should occur for all MT4G's, afaik.
What method are you using?? Give us some more info. Gfree method has been known to work for others having issues. I'd suggest trying that out.
Same problem I encountered with my Bro's phone with the same HBOOT as yours. .86.00 is a new HBOOT and I think it needed to downgrade?
My phone is HBOOT .85 and I have no problem rooting it over and over.
ur doing it wrong.
temproot, gfree, permroot, reboot.
flash cwm recovery
flash roms, enjoy
smirkis said:
ur doing it wrong.
temproot, gfree, permroot, reboot.
flash cwm recovery
flash roms, enjoy
Click to expand...
Click to collapse
No offense but I've rooted about a dozen of these in the last few weeks for friends with zero problems. Only thing different is this phone is a SHIP model with a newer HBOOT. I've been using grankins walkthrough using visionary r14 + terminal and root files. Haven't tried the afb method as I don't owner a computer to afb with
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scott.ragan said:
No offense but I've rooted about a dozen of these in the last few weeks for friends with zero problems. Only thing different is this phone is a SHIP model with a newer HBOOT. I've been using grankins walkthrough using visionary r14 + terminal and root files. Haven't tried the afb method as I don't owner a computer to afb with
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Click to expand...
Click to collapse
no offense, but i still think your doing it wrong.
my mytouch4g info is as follows
pvt ship s-off
hboot .86.0000
its rooted, running cm7 without issues...
your hboot being .85 if im not mistaken is you installed the engineering hboot as well.. if you only perform temproot, gfree, permroot, reboot. and don't do the engineering hboot, you will still maintain the .86 hboot which is fine for flashing custom roms.
the .85 hboot gives you more flashable abilities, ie official rom releases from other countries or whatever. unnecessary for someone who just uses custom known working roms..
My phone has the same hboot as the phone you are trying to root. I've never tried any other method but, I was able to gain root using grankin's True permaroot guide. But if I remember correctly you will need adb for it.
Sent from my RoyalLiquid using XDA App
I had this issue today. Ive rooted a few of these including floor models at local stores. This one today wouldnt turn s off. No matter what method I did. I ended pushing the root files through adb to the device and rebooting after everystep. Once it got s-off no roms would load except iced glacier. Royal glacier and thunderbolt both wouldnt make it past the splash screen. In the end got root but wondering why this was such a pain.
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Rooted HTC EVO 4G s-off

I rooted my HTC EVO but it still shows my s-on instead of s-off. It still seems like I am rooted (still able to flash custom roms and grant apps superuser permissions) but is there a way to get s-off again? I am a noob but I feel like I know a lot so please be gentle.....
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aggiedf said:
I rooted my HTC EVO but it still shows my s-on instead of s-off. It still seems like I am rooted (still able to flash custom roms and grant apps superuser permissions) but is there a way to get s-off again? I am a noob but I feel like I know a lot so please be gentle.....
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Click to expand...
Click to collapse
Well then you're not fully rooted.
http://forum.xda-developers.com/showthread.php?t=838448
So I have to follow this process again...I rooted using unrevoked before but then had issues with phone so tried unrooting with unrevoked again...needless to say Sprint didn't take phone back.....
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aggiedf said:
So I have to follow this process again...I rooted using unrevoked before but then had issues with phone so tried unrooting with unrevoked again...needless to say Sprint didn't take phone back.....
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Click to expand...
Click to collapse
Here's what I would recommend:
1) Back up whatever you want.
2) Run a RUU: http://forum.xda-developers.com/showthread.php?t=884060 to run to completely stock
3) Run this: http://forum.xda-developers.com/showthread.php?t=838448
Then you're good to go.
How did you root? What android version are you on? The latest OTA cannot be rooted as of yet.
mattykinsx said:
Here's what I would recommend:
1) Back up whatever you want.
2) Run a RUU: http://forum.xda-developers.com/showthread.php?t=884060 to run to completely stock
3) Run this: http://forum.xda-developers.com/showthread.php?t=838448
Then you're good to go.
Click to expand...
Click to collapse
+10
Depending on where you are at with your internal workings and any update you may or may not have done, you may have trail and error back to the 3.29 ruu if your getting errors, so don't give up.
Is there any word as to if it is even possible to root the ota 2.3.3 and if there is anybody working on it? I figure unrevoked has ahold of it lol
pbguy8709 said:
Is there any word as to if it is even possible to root the ota 2.3.3 and if there is anybody working on it? I figure unrevoked has ahold of it lol
Click to expand...
Click to collapse
No word yet. Please stop asking, there are over 25 threads about rooting the 2.3 update already. When a root method is acheived, you will find out.
I rooted using unrevoked and I actually did root and showed s-off but I unrooted using unrevoked and it turned s-on again...now I can still flash different roms and some apps still ask for root permission and are granted....but I am trying to flash kings v6 Rom and am having issues with it.....right now I am running mikg v1.03
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I just wonder if the s-on may be my issue with flashing this particular ROM....basically getting HTC launcher error....have wiped everything with clockworkmod even switched to Aman-Ra and tried that recovery also....same issue
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mattykinsx said:
Here's what I would recommend:
1) Back up whatever you want.
2) Run a RUU: http://forum.xda-developers.com/showthread.php?t=884060 to run to completely stock
3) Run this: http://forum.xda-developers.com/showthread.php?t=838448
Then you're good to go.
Click to expand...
Click to collapse
Thank you this worked and am fully rooted again 10
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Stock unrooted 2.3.4 GB rom

I want to return my phone to original because the speaker is dead. I am currently 2.3.4 rooted S-off with a MIUI rom. I was going to download the unrooted rom but it was on megaupload. Where can I find it now? Please excuse me if I wrote something noobish.
I found a rooted 2.3.4 stock gingerbread, but now the reverse gfree method is not working. It always freezes at the dd if=/your part7number.bin part. Does anyone know the problem. Thank you.
Did you download a file called PD15IMG. IT its the stock rom. If you have the file just drag it from your comp to your sd card. Restart the phone holding the volume button down and the power. Hboot screen should come up, press volume up and it will automatically install the stock rom, press volume up when it asks if you want to update. If you dont have the file private message me and I will send it to you via email bro
Core droid htc glacier
Yeah. I got the pd15img, and now I am stock 2.3.4 unrooted. The problem I still have s-on. Do you think HTC will care?
McSurge45 said:
Yeah. I got the pd15img, and now I am stock 2.3.4 unrooted. The problem I still have s-on. Do you think HTC will care?
Click to expand...
Click to collapse
If you have s-on then you are good. They shouldn't even know it was rooted.
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My B. I meant s-off. I tried to do the method to revert in the true perma root post, but it does not let me dd if= the part7 backup. My phone just freezes and reboots. Will they care if I have s-off?
McSurge45 said:
My B. I meant s-off. I tried to do the method to revert in the true perma root post, but it does not let me dd if= the part7 backup. My phone just freezes and reboots. Will they care if I have s-off?
Click to expand...
Click to collapse
I doubt they would even care. Better to be safe than sorry though.
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I am trying to be safe, but the method on the perma root post does not work. Is there another way?
Wow. Speaker randomly fixed itself. Now to reroot. Is it any different since I already have S-off but not root.
McSurge45 said:
Wow. Speaker randomly fixed itself. Now to reroot. Is it any different since I already have S-off but not root.
Click to expand...
Click to collapse
Just run through gfree method, it's easier and less nerve wracking the second time around.
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eqjunkie829 said:
If you have s-on then you are good. They shouldn't even know it was rooted.
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Click to expand...
Click to collapse
+1
Core droid htc glacier

[Q] Is there any way to root 2.3.4?

By the way 2.3.4 is Gingerbread, I have a MyTouch 4G, and I have the stock ROM from T-Mobile update on it. My question is, is there anyway to root 2.3.4?
[Not Edited, but thought I should add] If there is no way to root 2.3.4, I will downgrade to 2.3.3. (If someone wants to help me with that, please, I will be glad)
Giving everyone a thanks just for commenting. Thanks in advance.
Aarrrgh![pulling hair]
I refuse to believe people will never learn. Its impossible that people just do not care to search and read.
I don't get it.
coupetastic-droid said:
Aarrrgh![pulling hair]
I refuse to believe people will never learn. Its impossible that people just do not care to search and read.
I don't get it.
Click to expand...
Click to collapse
Fine,guy. I did research, just wanted to see if there is any current ways, because everything I read is from 2011 about Gingerbread not having any roots for 2.3.4. Guest ill just downgrade, thank you anyways.
And you downgrade to 2.2.1....we didn't receive a 2.3.3 update.
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you must downgrade to 2.2.1 froyo
there are "methods" to root from 2.3.4 but all don't work or will brick your phone.
most of them are the one click methods which you should avoid anyway.
downgrading only takes a sec just follow this thread to downgrade
http://forum.xda-developers.com/showthread.php?t=1178912
then this one to root
http://forum.xda-developers.com/showthread.php?t=858996
MamaGlue said:
you must downgrade to 2.2.1 froyo
there are "methods" to root from 2.3.4 but all don't work or will brick your phone.
most of them are the one click methods which you should avoid anyway.
downgrading only takes a sec just follow this thread to downgrade
http://forum.xda-developers.com/showthread.php?t=1178912
then this one to root
http://forum.xda-developers.com/showthread.php?t=858996
Click to expand...
Click to collapse
After doing that, how do you get back to 2.3.4 without losing root privileges?
You install custom recovery and flash a pre-rooted 2.3.4 ROM.
There's always an option to remove HBOOT from the 2.3.4 PD15IMG.ZIP and flash it through HBOOT, and then install a custom recovery and flash su.zip in it. But it's a bit more complicated.
x3mandapanda said:
After doing that, how do you get back to 2.3.4 without losing root privileges?
Click to expand...
Click to collapse
download a custom gingerbread rom
here is one that's pretty popular;
http://forum.xda-developers.com/showthread.php?t=1504718
If you are S-Off
Grab Froyo 2.2.1 zip from this forum. Make sure it is called PD15IMG.zip and place it on the root of your sdcard
Shut phone off & boot into HBoot (vol down + pwr button)
Have it load the PD15IMG.zip file and once its done your phone will be back to running Froyo.
Now grab Visionary+ & root.rar (from this forum) & a terminal emulator & a file explorer.
Put visonary+.apk on your sdcard and run it via file explorer for temp root
Extract root.sh to /sdcard/root
now load up terminal emulator and type:
su
cd /sdcard/root
sh root.sh
Let it run (takes a minute sometimes)
Once that is done go back to Visionary+ and "Perm root" reboot and you should have perm root.
Now just Clockword Rom manager and you can flash whatever ICS rom you want. (running CM9-unofficial personally)
I wish i could remove a thanks.
This will only work if the phone has a good eMMC chipset. If they have a bad one. it will not work.
neidlinger said:
I wish i could remove a thanks.
This will only work if the phone has a good eMMC chipset. If they have a bad one. it will not work.
Click to expand...
Click to collapse
Not completely true. I've already rooted a few mt4g with bad chips. 2 being my girls and my brothers mt4g.
Using root.sh? Or perhaps using gfree?
coupetastic-droid said:
Not completely true. I've already rooted a few mt4g with bad chips. 2 being my girls and my brothers mt4g.
Click to expand...
Click to collapse
The "bad" chip only roots with gfree. I tried root.sh. It just looked at me ans scoffed.
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estallings15 said:
The "bad" chip only roots with gfree. I tried root.sh. It just looked at me ans scoffed.
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Click to expand...
Click to collapse
Never used gfree since I don't own a PC. All bad chip mt4g I've rooted have been rooted within the device with visionary and root.sh method from the unlockr.
I have only ever followed the guide on XDA for ultimate S=OFF rooting guide using visionary, seems to work the best.
coupetastic-droid said:
Never used gfree since I don't own a PC. All bad chip mt4g I've rooted have been rooted within the device with visionary and root.sh method from the unlockr.
Click to expand...
Click to collapse
I used gfree without a PC. Terminal emulator ftw.
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trying to root via gfee and can't get visionary to work, it just says "rooting" forever. I'm on stock Froyo... any idea?
orangekid said:
trying to root via gfee and can't get visionary to work, it just says "rooting" forever. I'm on stock Froyo... any idea?
Click to expand...
Click to collapse
Gave up on root.sh? Lol. Make sure usb debugging is enabled and reboot between attempts.
Ya figured gfree was better plus Sim unlock. I did both of those. Still same thing
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orangekid said:
Ya figured gfree was better plus Sim unlock. I did both of those. Still same thing
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Click to expand...
Click to collapse
Are you trying to perm or temp root?
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Help flashing roms

I recently rooted my Mytouch 4G using the Unlock Bootloader from Htcdev.com, i also flashed clockworkmod, busybox and superuser, The problem I'm having is when ever i try to flash a ROM i downloaded the phone just gets stuck at where you first boot it up at The "T Mobile MyTouch 4G" screen and just stays like that, i've tried it with a few different ROMs and it just stays like that, if anyone can help that'll be great and if you need more information then just ask please. i can also revert to the stock ROM fine but its the other ROMs that don't work
Thanks
http://forum.xda-developers.com/showthread.php?t=1678442
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You will need to revert down to 2.2.1 stock, then root. I did the same thing and found an issue with flashing roms. I do.t have the thread links with me right now but could help when I get home tonight.
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This is no "issue". It's the intended behavior of HTCDev-unlocked bootloader. Kernel is to be flashed separately.
The only way to avoid it is to relock the bootloader and S-OFF with the old-fashioned downgrading method.
Ok so I used the wrong term when I said "issue". All I was getting at was s-off is the easier and preferred method.
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