Develop Bugs

Help Unlocking Samsung Exhibit II 4G/T679

Hi All ,
A friend of mine got Samsung Exhibit II 4G/T679 T-Mobile USA ,
Searched in the forum and tried old methods used with Galaxy S and Galaxy SII and Vibrant but all shots was unsuccessful
So is there any way or guide to unlock that device ?
Thanks all for your help
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Only one
There is only one way to unlock the Exhibit 2 4g. You need a network unlock code from either T-Mobile or a company that has access to the keys. (I personally used cell-unlocker, but that is because they have ads everywhere.)
If you do go through T-Mobile for the unlock code, you need like to have $50 worth of credit with the account or show proof that you paid full RETAIL (mine wasn't covered because I bought it on Amazon from Samsung).

Thanks for your help , sent the phone that have more advanced tools that can calculate the codes and already unlocked it
want to add Arabic support to it just in reading websites and Facebook updates
Thanks again m8

did you use to unlock the phone?

Samsung Exhibit T679 unlocked successfully!!! thanks to Kachman
Hey guys!
Breaking news!
for many days I was desperately trying to unlock my Samsung Exhibit T679 model brought from USA (locked to T mobile). After seeing the posts in XDA forum, I had some hopes. I committed to donate for the unlock.
Chils41 helped me at first. But even he could not unlock the phone. He referred kachman (http://forum.xda-developers.com/member.php?u=2018292) for the unlock . I donated him 10$ for the unlock. Just today, he has successfully unlocked my phone. It has just just less than a minute to unlock. He unlocks the phone remotely. Just we need to download two remotely connecting programs.
Kachman! Thanks very much.

Great topic mate!

[Q] unlocked One X unable recieve official software update

Dear XDA members,
I recently bought a HTC One X from Expansys Japan which say on the website that the phone is 'sim-free' i.e. factory unlocked. When I received the phone, the seal was broken and on the first startup the phone didn't ask for initial setup. The language was Chinese which I changed to English, then I tried to update the software which got downloaded (on Wi-Fi) but the software couldn't be installed and gave an error that the phone as running a modified software and I need to return to original (snapshot below).
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I then found that the phone has been rooted and the software version and the ROM is something with "OneX.G2 by Cason" written at the end. It seems that they unlocked the One X and send it to me. Now that I haven't yet got any reply from them regarding this fraud, is there any way I can get the software update for this phone?
Can I return the phone to factory setting without loosing the unlock and can use on my carrier after the software update? Or if I reset the phone then it will get locked to its previous carrier and I might not be able to use it without unlocking again??
Thank you in advance.

You were sold used goods as new. The warranty is void. Not much else to be said.

Look in the development section, there are guides you could follow to relock the bootloader and install stock recovery, which will allow you to receive HTC's OTA updates. You can always re-unlock the bootloader using HTCDev.com.
That being said, since your warranty is already void because the bootloader has been unlocked, you should consider finding a custom ROM and kernel that suits your needs, since they'll usually be (much) faster and power-efficient than the stock ROM.

Epdg test app

I found this while playing around with different hidden things on my note 4 and was wondering if anyone could tell me what it is and if anyone knows if it's ok to change any of the settings in this menu.
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Sent from my SM-N910V using XDA Free mobile app

I can't see a photo if you appended one.

After looking into this after debloating and now that I have an unlocked bootloader (so happy now), it seems to be a test to enable WiFi calling with verizon and/or samsung. It should be harmless. I froze it in Titanium Backup since they have announced WiFi calling coming to verizon.....soon.
Sent from my SM-N910V (jfltevzw now trltevzw Stock 5.1.1 Xposed using XDA-Developers mobile app)

Verizon: turbodrainer
Hi.
I accidently bought a s7 edge verizon and now I can't work anymore. Its draining my battery so fast that it get to hot to finish. I have tried to unlock the bootloader so I can root it, (both with wondershare dr. Fone and with odin) but it seems impossible.
How can I make my phone my own phone?

Toastmaster83 said:
Hi.
I accidently bought a s7 edge verizon and now I can't work anymore. Its draining my battery so fast that it get to hot to finish. I have tried to unlock the bootloader so I can root it, (both with wondershare dr. Fone and with odin) but it seems impossible.
How can I make my phone my own phone?
Click to expand...
Click to collapse
Follow this post carefully step by step, do not skip anything and you should have a fully rooted S7edge.
Keep in mind that there's no bootloader unlock available for US Samsungs, therefore no TWRP custom recovery, otherwise it works just fine.
https://forum.xda-developers.com/showpost.php?p=81045085&postcount=1826

Thx
Thanx. I will get back when I'm finished

Vodafone - nasty bloatware tackticks...

I just read on another forum that Vodafone are pushing bloatware to your phone even if you have a Sim free phone bought independently... They are disguising it as an ota update and trying to trick you into loading their bloatware apps...
Scummy attitude!
They keep pushing it to your phone until you download it...
I'm sure they do it for all phone brands, but I'm putting it here as it happened to a 10 user.
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I think it's smart. They use the ota system to get to a higher userbase for their applications. That's called smart marketing and not illegal. So if you don't like it just press no or flash a custom rom and be done with those messages

You can select NO to decline, but every once in a while it will pop up again (restarts/search for updates). I have a SIM free phone and this is a bit annoying. It is a burden to be a VF customer, I think they should cut that s*it. Also it's not called smart marketing, it's called how to upset and lose customers.

When your apps suck so bad that you have to resort to sly tactics to sneak in your bloatware!

Actually, its not just Vodafone. Its any carrier. I have German Vodafone SIM and Croatian T-Mobile SIM and when I switch them out I get the same popup just with different carriers. Its HTC customization that lets you download predefined apps from your carrier even if you bought your phone unlocked.
Good thing is that this is probably installed just as an app, and you can probably delete it or it will be automatically deleted when you switch SIMs again.
I havent tried to download it but Im quite sure this is just a HTC "feature" instead of carrier bloat. And besides, Vodafone has a lot more bloat than this tiny 5 MB.

I had this too on Dutch Vodafone. But to be fair, I also got this at some point on the One M8 I had before my current 10. So it's not device specific either.

S20 Ultra on Android 10 won't update.

Recently I bought an s20 ultra from Ebay and I can't get it to upgrade. It says the operating system is up to date. I know I can do it manually if necessary. My question is why can't it do it automatically?
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Is it AT&T locked or that (ATT) is just a coincidence? Maybe it really is the latest version for AT&T locked devices.

Deses said:
Is it AT&T locked or that (ATT) is just a coincidence? Maybe it really is the latest version for AT&T locked devices.
Click to expand...
Click to collapse
Thanks for the reply. Yes, it's locked to AT&T and I have checked on sammobile and there doesn't seem to be an update available for my specific model number but for the SM-G988U1 there are, also for other model numbers of the S20 Ultra, why would mine be left out, do you have any ideas?

Galaxyuser75 said:
Thanks for the reply. Yes, it's locked to AT&T and I have checked on sammobile and there doesn't seem to be an update available for my specific model number but for the SM-G988U1 there are, also for other model numbers of the S20 Ultra, why would mine be left out, do you have any ideas?
Click to expand...
Click to collapse
Because your mobile carrier can't be arsed to validate the update and distribute to its locked devices. I've heard a lot of grief over the years over locked devices and updates and being unable to tinker with the phone because the bootloaders are all locked.

Deses said:
Because your mobile carrier can't be arsed to validate the update and distribute to its locked devices. I've heard a lot of grief over the years over locked devices and updates and being unable to tinker with the phone because the bootloaders are all locked.
Click to expand...
Click to collapse
Thanks I guess the best thing to do would be to have it unlocked and then hope it gets updated. or do it manually.