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[Tutorial] D2G GSM band unlock--Worked on 330 to GB

We all know GSM band unlock is available on Froyo.
Now we can update to GB with Froyo's baseband, so it works too.
Here is more information : http://rootzwiki.com/topic/8326-d2g-gingerbread-hack-for-us-band-unlockers/
I'm curious, it says the GSM band unlock only works on 2.4.29's radio
But for me, it works on 2.4.330 very well. I never SBF 2.4.29, I always SBF 2.4.330 and use the unlock directly.
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"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
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Here's the details to get unlock on GB.
Downloads:
http://www.multiupload.com/83M5G5WN4K c74e4c55e10ca09c8f86d836008ec190
http://www.multiupload.com/L2KGS39BMO 56d1c3cfc8ce9ee70fa6ced4f82340b3
1. SBF back to 2.4.330 ( It works for me, if you have any trouble with 330, try 2.4.29 )
2. Root & Install Droid2Bootstrap_V1.0.0.5.
3. Put TBH_Band_Unlock_v2.0.zip in SD card.
Put D2G-608-Kernel.zip in SD card
Unzip D2G-608-nandroid.zip, put the folder "2011-10-26.14.34.37" in your SD card: /clockworkmod/backup
4. Go to Bootstrap recovery, flash Band unlocker : TBH_Band_Unlock_v2.0.zip http://www.multiupload.com/2QAZAQEH50
5. Flash D2G-608-Kernel.zip, after that, do not reboot!!!
6. Restore D2G-608-nandroid.
7. Wipe data/cache/dalvik or your can followed flash other GB rom.
8. Reboot, all done.

?????
unlock all GSM or only only AT&T ?

my_hope said:
unlock all GSM or only only AT&T ?
Click to expand...
Click to collapse
Unlock GSM 850/1900 fq, so it works on T-Moblie too.

Since you're with AT&T, are you able to get 3G too?

what if I update my phone to the current official version, How can I unlock the baseband?

leobg said:
Since you're with AT&T, are you able to get 3G too?
Click to expand...
Click to collapse
Yes, 3G works on AT&T

feinanusa said:
what if I update my phone to the current official version, How can I unlock the baseband?
Click to expand...
Click to collapse
flash any offical GB update, ur baseband and kernel will be replaced and there is no way to unlock it till now.

It don't unlock. It don't have network because verizon lock.It think It will unlock all GSM global.

eddyzenl said:
We all know GSM band unlock is available on Froyo.
Now we can update to GB with Froyo's baseband, so it works too.
Here is more information : http://rootzwiki.com/topic/8326-d2g-gingerbread-hack-for-us-band-unlockers/
I'm curious, it says the GSM band unlock only works on 2.4.29's radio
But for me, it works on 2.4.330 very well. I never SBF 2.4.29, I always SBF 2.4.330 and use the unlock directly.
View attachment 781639View attachment 781640
Here's the details to get unlock on GB.
Downloads:
http://www.multiupload.com/83M5G5WN4K c74e4c55e10ca09c8f86d836008ec190
http://www.multiupload.com/L2KGS39BMO 56d1c3cfc8ce9ee70fa6ced4f82340b3
1. SBF back to 2.4.330 ( It works for me, if you have any trouble with 330, try 2.4.29 )
2. Root & Install Droid2Bootstrap_V1.0.0.5.
3. Put TBH_Band_Unlock_v2.0.zip in SD card.
Put D2G-608-Kernel.zip in SD card
Unzip D2G-608-nandroid.zip, put the folder "2011-10-26.14.34.37" in your SD card: /clockworkmod/backup
4. Go to Bootstrap recovery, flash Band unlocker : TBH_Band_Unlock_v2.0.zip http://dl.dropbox.co...Unlock_v2.0.zip
5. Flash D2G-608-Kernel.zip, after that, do not reboot!!!
6. Restore D2G-608-nandroid.
7. Wipe data/cache/dalvik or your can followed flash other GB rom.
8. Reboot, all done.
View attachment 781641View attachment 781642
Click to expand...
Click to collapse
The link to step 4 does not work...

That's because you couldn't follow the thread link. (That's a perilous endeavour, took me at least 5 secods.)
http://rootzwiki.com/topic/9358-my-experience-of-gsm-band-unlock-worked-on-330-to-gb/

Gasai Yuno said:
That's because you couldn't follow the thread link. (That's a perilous endeavour, took me at least 5 secods.)
http://rootzwiki.com/topic/9358-my-experience-of-gsm-band-unlock-worked-on-330-to-gb/
Click to expand...
Click to collapse
Simply pointing out that a link is wrong is what we should do. Looks like a spell check is a more perilous endeavor in your case.
Do us all a favor, next time post a solution minus the irrelevant sarcasm.

unlock
relock

blakklanta said:
Simply pointing out that a link is wrong is what we should do. Looks like a spell check is a more perilous endeavor in your case.
Do us all a favor, next time post a solution minus the irrelevant sarcasm.
Click to expand...
Click to collapse
Well, I assumed you knew the link was wrong, because it had no URI path element in it, which was kind of obvious.
Mind pointing out where exactly do I need spell checking? I would appreciate it. Unless you mean a mistype like “seconds”.

All the links work with #4 being the exception. Why not have a complete guide here? Sarcasm does not help the many that come here seeking assistance.
Sent from my Nocturnal 3D using Tapatalk

That link seems to be copy-pasted as text directly from a page, not from the source. As many forums tend to shorten visible parts of URLs, it was damaged when copied. That's about it.

so
.. and correct me if I'm wrong..
with this I can unlock my sim locked D2G ? and use it to make phone calls?
.. I'm overseas and my operator runs on 1900mhz

sorry guys, I updated 4# link.
walderrama said:
so
.. and correct me if I'm wrong..
with this I can unlock my sim locked D2G ? and use it to make phone calls?
.. I'm overseas and my operator runs on 1900mhz
Click to expand...
Click to collapse
Yes u can unlock 1900mhz and use it as a regular phone.

walderrama said:
so
.. and correct me if I'm wrong..
with this I can unlock my sim locked D2G ? and use it to make phone calls?
.. I'm overseas and my operator runs on 1900mhz
Click to expand...
Click to collapse
No, this will not remove the sim lock protection off your phone. It will remove the restriction of using US GSM based providers such as AT&T and T-Mobile US, that Verizon implemented. This is NOT a sim unlocking solution.
Sent from my XT860 using Tapatalk

Stock in logo please healp

montanezcl said:
Stock in logo please healp
Click to expand...
Click to collapse
You need to wipe data after sbfing back from GB. Try that (from stock recovery) if no go - SBF again. Check sticky threads too.
Sent from my XT860 using Tapatalk

[HELP] Derped by new Z3 (or maybe it's SIM Locked)

I broke my Z3 and got a replacement a few days ago.
After I flashed pre-rooted 23.4.A.0.546, linked here, the he replacement shows the dreaded Invalid Card. Emergency calls only:
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"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
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I never tested the device, I went directly for the root, ZX discovery and pre-rooted flash.
As quick explanation:
I got the device.
I never inserted a SIM, I immediately followed the instruction to root a Z3 with a locked BL:
- downgraded phone with D6603_23.0.A.2.93 ftf linked here.
- ran giofroot exploit. used v3.1. had to run it twice.
- mounted /system rw with ES Explorer.
- installed Z3 Dualrecovery for locked BL.
- then flashed 23.4.A.0.546 linked here.
Phone turned on without a hitch.
When I placed the SIM, I noticed the Invalid Card notice.
Tried (and failed) attempts:
Since then, I've rolled back to D6603_23.0.A.2.93.
Installed PC Companion (eeew) and done a system repair.
Downloaded the latest firmware from xperifirm for Telcel's branded ROM.
nothing. device still says Invalid Card.
a few screenshots that might help someone get a better understanding of what happened;
can anyone confirm if I have a SIM-locked device or if I flashed the wrong firmware?
How can I roll back? what measurements can I take to better understand the problem?

Hobbess2099 said:
I broke my Z3 and got a replacement a few days ago.
After I flashed pre-rooted 23.4.A.0.546, linked here, the he replacement shows the dreaded Invalid Card. Emergency calls only:
I never tested the device, I went directly for the root, ZX discovery and pre-rooted flash.
As quick explanation:
I got the device.
I never inserted a SIM, I immediately followed the instruction to root a Z3 with a locked BL:
- downgraded phone with D6603_23.0.A.2.93 ftf linked here.
- ran giofroot exploit. used v3.1. had to run it twice.
- mounted /system rw with ES Explorer.
- installed Z3 Dualrecovery for locked BL.
- then flashed 23.4.A.0.546 linked here.
Phone turned on without a hitch.
When I placed the SIM, I noticed the Invalid Card notice.
Tried (and failed) attempts:
Since then, I've rolled back to D6603_23.0.A.2.93.
Installed PC Companion (eeew) and done a system repair.
Downloaded the latest firmware from xperifirm for Telcel's branded ROM.
nothing. device still says Invalid Card.
a few screenshots that might help someone get a better understanding of what happened;
can anyone confirm if I have a SIM-locked device or if I flashed the wrong firmware?
How can I roll back? what measurements can I take to better understand the problem?
Click to expand...
Click to collapse
Maybe this is important; when I downgraded the first time, I checked the following exemptions:
- KERNEL
- FOTA
- BASEBAND

Hobbess2099 said:
Maybe this is important; when I downgraded the first time, I checked the following exemptions:
- KERNEL
- FOTA
- BASEBAND
Click to expand...
Click to collapse
You did it wrong. NEVER check to exclude FOTA BASEBAND AND KERNEL.
baseband is what controls the radio (network) and it is very important. Flash again properly and don't check anything in exclude, but ALL in WIPE. In downgrade you MUST wipe everything.
Sent from my D6603 using Tapatalk

Thanks.
Is there a way to know which carrier is locking the device? Besides trying Sims from each carrier, I mean.
Sent from my SGP611 using Tapatalk

Hobbes2099 said:
Thanks.
Is there a way to know which carrier is locking the device? Besides trying Sims from each carrier, I mean.
Sent from my SGP611 using Tapatalk
Click to expand...
Click to collapse
No, but it is not probable that it is simlocked. It is almost 100% because you have wrong Baseband / Firmware combination. The older firmware (downgraded) does not support newer baseband you left in the device unflashed.

so I tried two different flashes including FOTA, BB and Kernel;
- D6603_23.0.A.2.93 from the original OP.
- latest firmware from xperifirm for Telcel's branded ROM; 23.4.A.0.546
in both cases, i left the entire Exception section unticked.
in both cases, after initual bootup, I still get the "Invalid Card." warning.
I'd like to start discarding possibilities.
- can flashing affect SIM lock? either way, locking or unlocking devices? My understanding is that it shouldn't. Could someone please confirm?
- is there a way with which carrier the devices is locked? The screenshot shows a [X] on network lock with a 5.
is there a way to find out that does not involve getting SIMs from every carrier?

Hobbes2099 said:
so I tried two different flashes including FOTA, BB and Kernel;
- D6603_23.0.A.2.93 from the original OP.
- latest firmware from xperifirm for Telcel's branded ROM; 23.4.A.0.546
in both cases, i left the entire Exception section unticked.
in both cases, after initual bootup, I still get the "Invalid Card." warning.
I'd like to start discarding possibilities.
- can flashing affect SIM lock? either way, locking or unlocking devices? My understanding is that it shouldn't. Could someone please confirm?
- is there a way with which carrier the devices is locked? The screenshot shows a [X] on network lock with a 5.
is there a way to find out that does not involve getting SIMs from every carrier?
Click to expand...
Click to collapse
Flash only firmware from XperiFirm. Others of unknown origin can be provider specific. However, the SIM LOCK is firmware independent.
I omitted some of your pictures. The X mark on Network means that is IS provider LOCKED and you have 5 retries to enter unlock code.

Need help, no radio!

I am a pretty decent android er. But damn, I got in trouble with my unlocked s7, flashing the new superman 1.5. I used the att csc option in aroma, and I had no SIM service. Nor imei, I tried to go back to 1.4.1 with corresponding BL, nothing, so I odin'd a stock package, and I did take, but still, everything SIM related or 5 ghz WiFi is down, since I've already dl'ed and installed a stock package from sammobile, what else are my options? Thanks a lot for anyhelp, I read that w other guys had a similar issue until it was noted that the att and tmo cscs were incompatible.

This is similiar to the problem I had. The CSCs for ATT and TMB (possibly sprint and Verizon if they exist) are bad. They are designed for a qualcomm device. T-mobile also uses a custom ims profile for their wifi/volte that has not been ported in the S6 or Note5 to international models even though they share the same chipset. - this may be cause for a bounty.
What I did after having this issue was reinstall the rom after a wipe, choosing a non-US carrier (the default one, for instance). It worked fine afterwards.

rp3 said:
This is similiar to the problem I had. The CSCs for ATT and TMB (possibly sprint and Verizon if they exist) are bad. They are designed for a qualcomm device. T-mobile also uses a custom ims profile for their wifi/volte that has not been ported in the S6 or Note5 to international models even though they share the same chipset. - this may be cause for a bounty.
What I did after having this issue was reinstall the rom after a wipe, choosing a non-US carrier (the default one, for instance). It worked fine afterwards.
Click to expand...
Click to collapse
That was my first instinct but everything I flash doesn't help, reflashing 1.5 and choosing sweeden, Nordic or Australian is the same, same with 1.4.1, and I reflashed a sock OS via Odin and still nothing, and then I refreshed twrp and redid 1.5 and still! Which has me worried

Did you wipe first? Also, are you using a 930f or a 930FD. If FD, there could be other problems.

rp3 said:
Did you wipe first? Also, are you using a 930f or a 930FD. If FD, there could be other problems.
Click to expand...
Click to collapse
Yeah, i mean i have to do a wipe to go from encrypted to un encrypted, I also only have the single sim. But i mean anyways, i def am solid on flashings and full wipes and stuff, I mean doing a stock OS through odin would def fix this normally, I can figured what little poison this superman left behind that isnt getting reset after flashes and wipes

I'm having the same issue. I have the FD (SM-G930FZSUXSG) I'm trying to find a factory image but am having no luck so far. I'll be keeping an eye on this thread to see if you get it resolved.

zombicidal maniac said:
I'm having the same issue. I have the FD (SM-G930FZSUXSG) I'm trying to find a factory image but am having no luck so far. I'll be keeping an eye on this thread to see if you get it resolved.
Click to expand...
Click to collapse
doing a little more research, i wonder if i didnt lose my IMEI somehow, it looks like the same symptoms

All the different firmware I've been flashing lets it boot into android but the Baseband only shows unknown. I don't know for sure which one would be the correct version for the model I have
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"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Edit- After more searching it seems my model is the United Arab Emirates model. Now I just have to figure out which firmware is the correct for that model and hope I can fix it with that but who knows.

zombicidal maniac said:
All the different firmware I've been flashing lets it boot into android but the Baseband only shows unknown. I don't know for sure which one would be the correct version for the model I have
Edit- After more searching it seems my model is the United Arab Emirates model. Now I just have to figure out which firmware is the correct for that model and hope I can fix it with that but who knows.
Click to expand...
Click to collapse
So you have the same issue?

Yes. Everything was good when I got the phone new but now I need to find the factory firmware but so far no luck.

What stock firmware will work on this apparent refurb S7?

A friend's S7 is stuck on Android 7.0 but they brought it to me because their wife has the same phone but it upgraded to Android 8.0. Despite reboot, and factory data reset, when I press System update nothing happens, there is no UI response at all.
There has been some confusion over over which firmware to use as when I have provided screenshots as different people have told me because I am in Ireland I should use XEU, others have told me I should use INS or something else. The about device menu, the download firmware upload screen, the CSC dial code, and the Phone Info app all report the phone is a different model. Please see the different models and device information observed below.
SM-G930F observed:
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
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Initially based on this with Odin I tried flasing https://samfw.com/firmware/SM-G930F/XEU/G930FXXU8ETI2 :
Looking at Odin it seemed to work, but I read on successful flash a new reset button should appear where the green pass box is displayed but at the end this just appeared for a split second before reverting to the green pass box, before the phone restarted itself. On checking nothing has changed, still Android 7.0, despite reboot, and trying to flash again.
On further investigation, apparently the CSC that's an Indian dual sim SM-G930FD:
But this is a single SIM model:
SM-G930P observed:
I tried the same firmware again, this time using the CSC file instead of CSC home:
Phone Info app screenshots, SM-G930V observed:
The main purpose of trying to upgrade is to enable the owner to link a heart rate monitor watch device to it with Bluetooth which required 8.0, as to alert them to any heart abnormalities. Due to this, I would rather not use any custom ROM and only stock.
Is there a stock version firmware that will work with this device, and are there any higher than normal risks involved with flashing it with Odin? It was mentioned to me that because the device is an apparent refurb the risks are 50/50, and I would rather make the owner aware of this before flashing if that is the case.

CPU-Z:

I might be able to help you,
Is the phone model SM-G930F or SM-G930/A/P/V/some other kind of USA variant?
Can you show a picture of the device in stock recovery mode as-well as a picture OEM unlock in the developer menu?
The phone seems to display multiple times, the Snapdragon variant of the S7.
The phone also seems to show the bootloader and the baseband/modem, as G930P, the Sprint version of the S7,
the build version/PDA, and the CSC shows G930V, meaning the Verizon version of the S7. These two models probably shows that the S7 used to be a Snapdragon S7, not the Exynos version (G930F)
You said the phone is a apparent refurb, right?
The only reason I could think of why Odin somehow flashed SM-G930F firmware is that it probably has some kind of USA/Snapdragon variant of the S7 logic board and has the rest of the part with the model SM-G930F.
Not sure yet, but you may want to try flashing a USA variant of the S7 firmware.
Alternativly, if it is overruled that the phone is not a Snapdragon S7, you may choose to use this custom ROM/firmware. Everything works as it is just regular stock ROM (android oreo 8).

Things you can try:
Flash the latest Nougat firmware, then flash Oreo.
Flash the firmware in separate (eg. Bootloader only, CP only, ...)
Flash the latest recovery (extract it from the firmware) and wipe the phone with it, then head to the updated Bootloader (that you flashed separately) and try flashing again.
Use custom stock ROMs, if all you need is just Samsung Health, otherwise, even AOSP ROMs can make the deal.
Flash an earlier version of Oreo.
It doesn't matter a lot if the phone is refurbished or not, you only write to the motherboard, so knowing what chip and model your motherboard have is the only pillar you need.

N971N - Limited Service after firmware upgrade

I have a Galaxy Note 10 N971N which was running a custom firmware earlier and my T-Mobile sim card was working perfectly fine. I recently factory reset my phone and upgraded to Android 12, latest firmware available. Ever since the upgrade, my phone is showing Limited Service and the SIM card is not working at all. I tried AT&T as well but it keeps giving the same error.
Already went to T-Mobile's store, they changed my SIM card, reset network settings but nothing seems to work. How can I fix this?
Thanks in advance.

Factory reset after loading 12?
Make sure 4G VoLTE is enabled, etc check dial code phone settings. *#*#4636#*#*
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

blackhawk said:
Factory reset after loading 12?
Make sure 4G VoLTE is enabled, etc check dial code phone settings. *#*#4636#*#*
View attachment 5649171
Click to expand...
Click to collapse
I tried factory resetting and that didn't do anything either. Also ever since I've flashed this firmware, I keep getting some message in Korean every time I restart and I think it says that my bootloader is unlocked or something like that.

zainmerchant said:
I tried factory resetting and that didn't do anything either. Also ever since I've flashed this firmware, I keep getting some message in Korean every time I restart and I think it says that my bootloader is unlocked or something like that.
Click to expand...
Click to collapse
The bootloader should be locked unless you unlocked it. You should be able to roll back to 11 unless it upgraded the bootloader. So far nobody's reported this on Samsung with 12.

Any custom ROMs working for this device?