Develop Bugs

[Q] SM-N910A

Hello All,
Is there a way I can downgrade my SM-N910A from 4.4.4 to an earlier software, so that I can use the debug screen exploit to sim unlock the phone, or if someone knows how to bypass the simunlock without pay for a service that would be awesome.
Thank YOU !

Try asking for it from customer service.
Taking an out of country trip to a country with out att roaming service etc...

endjoi said:
Hello All,
Is there a way I can downgrade my SM-N910A from 4.4.4 to an earlier software, so that I can use the debug screen exploit to sim unlock the phone, or if someone knows how to bypass the simunlock without pay for a service that would be awesome.
Thank YOU !
Click to expand...
Click to collapse
Since the phone came stock with 4.4.4, I highly doubt you'd ever get anything lower. Paying for a service is your best bet. IMEI unlocks are permanent so itd be better in the long run

tyiphius said:
Since the phone came stock with 4.4.4, I highly doubt you'd ever get anything lower. Paying for a service is your best bet. IMEI unlocks are permanent so itd be better in the long run
Click to expand...
Click to collapse
Hello, can you give a link where to buy an unlock code? I have SM-N910A with AT&T sim lock

beritas said:
Hello, can you give a link where to buy an unlock code? I have SM-N910A with AT&T sim lock
Click to expand...
Click to collapse
I see this is a old post so you probably have found the info you need but for others I've read:
BEFORE POWERING UP a ATT device (NIB)... you can request a unlock code via ATT unlock page- (Google it)
Select NON-ATT customer even if you are a ATT customer!!!!... Enter info and in about 2 business days you will receive the code.
Once you get code, take the never powered up device back off /remove battery and insert a non-Att sim into the phone.
Next step= If you are unsure of the charge of the battery being above 30-40% or more, plug phone into battery charger. (Unlock process only takes a few seconds, point is you don't want phone to go dead while code is processing.)
Upon powering up the phone it will display a screen that has a place to enter the unlock code.
Power phone up, and enter code... and the SIM lock will be removed.
NOTE: If you power up phone and let phone register on Network prior to obtaining unlock code:
ATT will NOT give you the code until you have fulled all contract obligations.
(Exception being if you are active military and being deployed overseas.)
PS: Unlocking the phone right away is useful for those than are wanting to compare network reception within the 14-day buyers remorse period.
.

WeAreNotAlone said:
I see this is a old post so you probably have found the info you need but for others I've read:
BEFORE POWERING UP a ATT device (NIB)... you can request a unlock code via ATT unlock page- (Google it)
Select NON-ATT customer even if you are a ATT customer!!!!... Enter info and in about 2 business days you will receive the code.
Once you get code, take the never powered up device back off /remove battery and insert a non-Att sim into the phone.
Next step= If you are unsure of the charge of the battery being above 30-40% or more, plug phone into battery charger. (Unlock process only takes a few seconds, point is you don't want phone to go dead while code is processing.)
Upon powering up the phone it will display a screen that has a place to enter the unlock code.
Power phone up, and enter code... and the SIM lock will be removed.
NOTE: If you power up phone and let phone register on Network prior to obtaining unlock code:
ATT will NOT give you the code until you have fulled all contract obligations.
(Exception being if you are active military and being deployed overseas.)
PS: Unlocking the phone right away is useful for those than are wanting to compare network reception within the 14-day buyers remorse period.
.
Click to expand...
Click to collapse
Snks for your answer, I tried to use AT&T unlock with no luck so I found cellunlock.net and now got fully unlocked phone

SIM network unlock PIN

So I got my hands a new Nexus 5X from an EE retail store in UK, although I'm happy to use EE for everyday use there are times when I travel and need to swap SIMs due to black spots. Much to my horror and bemusement I discovered that my brand new 5X is indeed network locked, so there's that myth put to bed for non believers.
I have requested an unlock code from the network, unfortunately patience is not one of my strong points, does anyone know of any sites that offer an unlock for the 5X? I tried one this morning but it came back 'no code found'. If anyone knows of a site that can help, I'd appreciate a PM with the details.
Thanks.

For what is worth, I also got, from. my local carrier a brand new Nexus 5X. LG H790. Well, it turns out to be Network locked as well. Whenever the phone is turned on with the SIM in of another carrier it asks for: "SIM Network Unlock PIN"
I went on and bought online from two different companies sim unlock codes, from the first company: SimUnlock dot com was not able to found a code and after a few days, said so snd proceed to reimburse me.The second company: MasterUnlock dot com did return, very quickly (fte minutes after online purchase) a few codes, named
NCK NSCK SPCK CPCK SIMCK, tried the NCK and the SPCK as per the instructions received but none worked "unlock unsucessful", seems they are also reimbursing me.
So, I dont know whats next, as the carrier wont give out the unlock codes.
My Nexus 5X is locked to Mexico's carrier Telcel.

I have just had this exact same issue (EE UK). I didn't realise this was now a thing! I honestly thought these companies had grown up by now. but apparently not.
Has anyone come across a solution to these? If not, does anyone know if these codes are carrier specific and individual, or generic?
I'd appreciate any info anyone has on this as it's a new thing to me!

Sim Network Unlock Pin
The sim Network Unlock Pin in an code need to unlock your device to work on any Sim card in the world. To do this is need to find some good service where to unlock and to get your sim network unlock code, then add other sim card not original and in the form add your sim network unlock pin code to unlocked your mobile. For full information what is Sim Network Unlock Pin and how to get read this guide here. simnetworkunlockpin.com

lg g8 sprint unlock

i have bought a g8 from swappa, locked to sprint.
can it be unlocked already?
it does not asks for unlock pin when i put in another sim card.
or there is a way to flash an unlocked rom?
thanks

maderke said:
i have bought a g8 from swappa, locked to sprint.
can it be unlocked already?
it does not asks for unlock pin when i put in another sim card.
or there is a way to flash an unlocked rom?
thanks
Click to expand...
Click to collapse
Have a look at this article
https://www.reviews.org/mobile/unlock-your-sprint-phone/
I couldn't get my locked T-Mobile to work so planning to sell.

I bought a Unlocked Verizon G8 and I got it working for the most part but couldn't make or receive phone calls on it. I think the phone app had too much specific Verizon stuff. Ended up returning it

The Sprint version is a mess. Trust me.

I got my locked to Sprint. It works fine so far in the UK when I put my sim in it.

agent.m said:
I got my locked to Sprint. It works fine so far in the UK when I put my sim in it.
Click to expand...
Click to collapse
Great stuff, it's a solid phone and deserves a proper release in the UK

agent.m said:
I got my locked to Sprint. It works fine so far in the UK when I put my sim in it.
Click to expand...
Click to collapse
Are you sure it's not unlocked? Mine is brand new out of the box and I just get no Service, and a little note saying invalid sim in the drop down menu.
Has anyone manage to have one of these unlocked outside of going by the book with sprint?
All the services i've asked either said they can't do it, or said they could at first, then just sent me a refund pretty much straight back.
I don't mind paying for the service but it seems nobody is there yet.
Anyone know anything I don't?

Welfares said:
Are you sure it's not unlocked? Mine is brand new out of the box and I just get no Service, and a little note saying invalid sim in the drop down menu.
Has anyone manage to have one of these unlocked outside of going by the book with sprint?
All the services i've asked either said they can't do it, or said they could at first, then just sent me a refund pretty much straight back.
I don't mind paying for the service but it seems nobody is there yet.
Anyone know anything I don't?
Click to expand...
Click to collapse
They said it was locked to Sprint but also said it would work in UK. I hope you get it sorted. I'm having the same problem with the V50. I'm guessing the o my solution is if someone request the unlocking code from the manufacturer. Which can take a week or so.

agent.m said:
They said it was locked to Sprint but also said it would work in UK. I hope you get it sorted. I'm having the same problem with the V50. I'm guessing the o my solution is if someone request the unlocking code from the manufacturer. Which can take a week or so.
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Click to collapse
The problem for the unlock code with the sprint G8 (and I gather some of the other phones too) is that they don't request an unlock code with an alternate SIM. There's a bunch of other codes you can enter to get the unlock code thing to pop up..... doesn't work.
It looks like the solution for the same thing on the Sprint G7 is for them to remote in using teamviewer or anydesk and work their magic.
I guess I could see if I can get my hands on a properly smashed up, non screen functional, unlocked phone, and transplant the board. But not really something I want to do with a brand new phone.
Partially hobbled by the lack of popularity I guess, you can find someone to do pretty much anything done to a Samsung

Welfares said:
Are you sure it's not unlocked? Mine is brand new out of the box and I just get no Service, and a little note saying invalid sim in the drop down menu.
Has anyone manage to have one of these unlocked outside of going by the book with sprint?
All the services i've asked either said they can't do it, or said they could at first, then just sent me a refund pretty much straight back.
I don't mind paying for the service but it seems nobody is there yet.
Anyone know anything I don't?
Click to expand...
Click to collapse
Welfares said:
The problem for the unlock code with the sprint G8 (and I gather some of the other phones too) is that they don't request an unlock code with an alternate SIM. There's a bunch of other codes you can enter to get the unlock code thing to pop up..... doesn't work.
It looks like the solution for the same thing on the Sprint G7 is for them to remote in using teamviewer or anydesk and work their magic.
I guess I could see if I can get my hands on a properly smashed up, non screen functional, unlocked phone, and transplant the board. But not really something I want to do with a brand new phone.
Partially hobbled by the lack of popularity I guess, you can find someone to do pretty much anything done to a Samsung
Click to expand...
Click to collapse
Hi mate. I still have my G8 so will have a try with a code I was given. You need it to request the sim unlock right?

Welfares said:
The problem for the unlock code with the sprint G8 (and I gather some of the other phones too) is that they don't request an unlock code with an alternate SIM. There's a bunch of other codes you can enter to get the unlock code thing to pop up..... doesn't work.
It looks like the solution for the same thing on the Sprint G7 is for them to remote in using teamviewer or anydesk and work their magic.
I guess I could see if I can get my hands on a properly smashed up, non screen functional, unlocked phone, and transplant the board. But not really something I want to do with a brand new phone.
Partially hobbled by the lack of popularity I guess, you can find someone to do pretty much anything done to a Samsung
Click to expand...
Click to collapse
Im really hoping these codes work for you (option 2 or 3). I didn't for me unfortunately.
Unlocking instruction for LG G8 ThinQ ?
How to enter an unlock code in a LG G8 ThinQ:
Second option (device doesn't ask for an unlock code with an unaccepted SIM)
1. Start the device with an accepted simcard (example LG G8 ThinQ was bought in Orange you need to insert an Orange card)
2. Go to the dial screen and press “2945#*model number#” (the same way you enter a phone number)
Example: the device is a P999 you need to enter “2945#*999#” or for KU990 you need to enter “2945#*990#” etc…
Third option (accepted simcard)
1. Go to dial screen and press 2945#*71001# or 2945#*20001# as if making a call
2. when a hidden window appears enter the unlock code

Thanks Agent.M
I appreciate you looking into it. I've tried all those codes on mine and they don't work.
From what I gather, Sprint has used some sort of different locking method that can't be undone by entering a code.
It looks like it was the same on the LG G7 and the solution involved cross flashing some software. The services offering to do it all remote in using team viewer or similar and do it for you.
There was a thread running on the G7 forum for it the sprint unlock, this G8 thread doesn't seem to have nearly as much activity on it. And doesn't look like LG is being helpful with unlocking the boot loader.
I'm a bit sad, I put a lot of thought into which phone to get. We've only got the G8s locally, and it's not quite the same phone.
I'm going to return it and I guess burn the $100 in postage, return postage, restock fees etc. I'm not really happy to sit on it for another 6 months until someone works out an unlock for it. With my luck, someone will probably crack it next week after I send it off.

Unlock codes don't work on this phone.
There's no way to enter it.
Also. Suspicious post is suspicious.

It kinda sucks that this phone still can't be unlocked from Sprint using a 3rd party option. Because of the lack of attention, I'm afraid that LG phones might be leaving the scene just like HTC.

I ended up returning my g8 and getting a v40 new unlocked locally.
It's freaking enormous but we only got the g8s here which isn't any smaller.
Hence chasing the g8. I wanted something a sensible size.

My sprint phone have a major issue, it was randomly rebooting several times per day. I got sick of it and did a full reset, it made things even worse, I somehow lost the sprint boot up logo and now it just endlessly reboots until I shut it down completely.
Is there anyway to do flash it back to the original stock firmware?

My Sprint G8 (sim unlocked) from america is working with my Irish sim on GSM/UMTS only.........so no mobile data. There doesn't seem to be an option to add an APN.
It cost me 400 dollars including shipping and duties.............kinda expensive for a pocket camera!!!
Love the phone and will go to any lenghts to get it sorted.....but it's not looking good.

agent.m said:
I got my locked to Sprint. It works fine so far in the UK when I put my sim in it.
Click to expand...
Click to collapse
I'd love to hear details......did you buy the phone from US seller or did you bring it to the UK yourself, after using it on Sprint in the US?
Did your UK SIM register on your UK provider and have you got mobile data?
Could you post some screenshot from your "about phone" menu and also your APN setting from your Network menu?
I can't get my Sprint G8 working in Ireland on my data network (works on GSM, calls and texts only)
Sent from my ONE E1003 using Tapatalk

I'm having the exact same issue with my LG G8
- As We only have G8s in EU, I bought AT&T G8 from US eBay. Used it for a month without any issues and then suddenly MM#6 error.
- Went to AT&T "unlock phone" page and entered my IMEI. It said the phone is lost or stolen.
- Contacted the eBay seller, they told it should be unlocked and sent me an unlock code. I entered the unlock menu (2945#*820#) and all options gave the same result "Phone is not Personalized", which should mean that there is no lock on the unit and I did not have an option to even enter the unlock code. But there is still the MM#6 error.
So a bit clueless as to what to do now and based on this thread it seems like there is no solution to this. The phone seems to be locked by some other method.
I have never owned an LG phone before and just wanted to try it out. Guess it's an expensive lesson :laugh:
edit: just after posting this, I got answer back from my carrier - the phone is blacklisted. So that's and anticlimactic end to the story :laugh:

It's a pity......the handset is amazing.
There are a community of people trying to get this sorted.
The problem seems to be that your phone is trying to register on the ATT network and it can't........and there is no way to change the settings needed for it to register onto your network.
Can you post a screenshot of your APN screen in Network Settings.
Sent from my ONE E1003 using Tapatalk

OEM Unlocking Help

I have a supposed 'unlocked' pixel from ebay, sealed in the box. A warranty replacement that was never used. While trying to turn on OEM Unlocking, it is greyed out and says "Unavailable on carrier-locked devices." I've tried everything I can think of or find online but it remains greyed out. It's updated to android 11. Unless someone has some advice here I'm going to have to sell this device as it is useless to me.
I only wanted it if I could unlock the bootloader which it seems I cannot.
What disclosures should I make to anyone wanting to purchase this device? Is it SIM locked or just OEM locked? Can this be used with any carrier as far as normal phone usage? I have put the IMEI into Ting and US Mobiles device checkers and they come back reporting the phone is ready to be used but I don't know how accurate that is. Could the previous owner still have the device listed in their account somewhere (Verizon or Google) which renders the phone unusable?
Does this only work on the Pixel 3? I couldn't find any similar option for the Pixel 3a XL posted.
Code:
From https://joshspicer.com/root-pixel-1
Open terminal in adb directory and type adb shell pm uninstall --user 0 com.android.phone
Thanks for any advice you can offer me.

As far as I know there is no way to unlock a Verizon 3axl. If it was Google then it would not have the option greyed out. The person who sold it to you may have meant carrier unlocked.

It was actually Sprint. The seller contacted Sprint and said they would unlock it. Somehow they are going to do it without me having to send it to them. So, that seems like just a SIM unlock to me? I've never had to have one unlocked before. I will report back afterwards. I had to download a virtual SIM to first activate it on Sprint's network. Anyone else go through this with Sprint?
From now on, if I want to purchase a phone off eBay I'm going to have to get the seller to show me the unlock option. That's not going to be easy as most sellers won't know how.

DoubleFnJ said:
It was actually Sprint. The seller contacted Sprint and said they would unlock it. Somehow they are going to do it without me having to send it to them. So, that seems like just a SIM unlock to me? I've never had to have one unlocked before. I will report back afterwards. I had to download a virtual SIM to first activate it on Sprint's network. Anyone else go through this with Sprint?
From now on, if I want to purchase a phone off eBay I'm going to have to get the seller to show me the unlock option. That's not going to be easy as most sellers won't know how.
Click to expand...
Click to collapse
Once you get it sim unlocked you should be able to toggle oem unlocking. I had to get my TMO sim unlocked before I could oem unlock as the option was greyed out like yours.

You have to have the SIM card unlocked before the phone will let you OEM Bootloader unlock it.
This is to protect the wireless providers because if you could OEM bootloader unlock it even if it was SIM card unlocked, you would have an avenue to then unlock the SIM card lock.
Once the SIM Card is unlocked, then the OEM Bootloader option should be available (Verizon being the lone exception to the rule, but I believe there are work arounds to unlock the Verizon models after they are SIM Card unlocked).

To follow up, the SIM card unlock came through in just a couple of days. This was fortunate that the seller was willing to put the phone back on their plan in order to unlock it, others may not be able to do so; depending on how they purchased their used phone. Just be careful. You may have to sign up for the carrier and have the phone unlocked yourself. The OEM unlock toggle worked like magic. The phone is now sporting graphenOS and rocking and rolling forever free.
Thank you everyone for sharing your knowledge.

Sharing my story. Bought a used one listed refurbished on ebay for Sprint. Activated fine on my sprint account and I chatted in and asked to unlock it and they told me I had to wait 50 days. I waited 50 days chatted back they sent the unlock code and worked instantly. Running lineage now.

Question AT&T bootloader & Carrier lock

Well since I have found zero threads about AT&T bootloader unlock. Does anyone have any solution? Whenever I put in any other sim, it just says that unable to use any other sim apart from AT&T. So I just factory resetted my phone and blocked the device setup app from accessing the internet via the Netguard app. That's allowed me to use any SIM card apart from AT&T however it's not a permanent solution but I'd like to know my options. Any chance of me working around a carrier unlock or possibly bootloader unlock? I bought this phone outside the US, and to my stupidity I never factored in that this was also a possibility that it's carrier locked, that too with a bad standing. I tried unlocking online but it just says that there's payments overdue and that I should log into my AT&T account. Tried calling their customer service, however they're useless and unhelpful. Learned the hard way, depressed that I've kinda wasted my money. Can there possibly be a way to carrier unlock my device and bootloader unlock?

Can you return the phone? The seller should have disclosed that information and the phone will technically only be used on AT&T until it's paid off, and currently on AT&T (for 60 or 90 days before they will sim unlock)

I tried going back to the shop, they just said that there's no way that they offer returns and that I should just contact AT&T for this issue. I'm running out of options and patience. I'm basically stuck with this phone. There's really no check and balance here when it comes to these matters