Bought used 970F with Magisk, relocked, flashed stock UI5, no network at all - Samsung Galaxy S10e Questions & Answers

*****FINAL UPDATE: THIS POST IS A WASTE OF TIME WANDERING AROUND SOLUTIONS FOR THE IMEI. THE REAL REASON IS THAT I WAS SCAMMED AND BOUGHT A STOLEN PHONE WITHOUT KNOWING, AND THE IMEI/IMEIs WERE CHANGED, so when I factory reset the phone, the IMEIs were gone. If you're in the same situation, see if you can return the phone. If not, the only thing you can do is sell it AS IT IS, because YOU WERE PROBABLY SCAMMED, LIKE ME, so please sell it declaring the state of the phone and the IMEIs.*******
****If you want to read the entire post, go ahead, but you'll waste all your time. You were scammed, it's a stolen phone, end of story.****
Guys I was really excited about this purchase, I tested network with the seller, on both SIMs, both worked great, 4G data, when I took it home I noticed the phone was BL unlocked with Magisk, which made me worry about any security issues or not being able to update. Relocked BL from download mode, flashed stock G970FXXSDFUI5 (I live and bought it here in Colombia), and I checked this was the same FW that it had while rooted with Magisk
Cleared data/cache, flashed successfully, warnings gone, but no network at all, this is what I have:
- Only emergency calls with any SIM in any slot, already tried different carriers
- Checked IMEI in national blacklist database imeicolombia.com, they're both clean
- When trying to make a call "not registered on network"
- When going into Mobile Networks - Select Network - Select Automatically is ON, if I try to turn off it instantly says "Error searching for networks" and the switch stays on, so no "Manual Search" button.
Already tried clearing data/cache of SIM Toolkit app, what am I missing? Thank you!
UPDATE: I went through all the process of unlocking BL again and rooting again with Magisk successfully following this tut
with updated Magisk, etc, but still no ntwk, will now try flashing other countries same/higher SW REV, will post any other update.
Additional steps: I tried putting 2G only or 3G only and reset APNs to see if "Select Automatically" switch was fixed but same story, it wont turn off and shows same "Error while searching for networks" msg right away
UPDATE 2: I wanted to share a video I found that shows the exact same error that I get in the "Mobile Networks" menu:
Altough I rly dont think it's the same situation, cause in that video, the phone has no signal at all, mine is able to pick full signal for emergency calls. I rly dont think my situation is that of hardware but some kind of software/activation/sim thing (It's not the SIM bc it works in any other phone)
Please someone help me, I've invested more than labor hours researching and trying to fix this, I fear I could damage the phone by flashing it so many times

Fixed by @hainguyenthao
DDDDDD

SamaelThuum said:
Fixed by @hainguyenthao
DDDDDD
Click to expand...
Click to collapse
How?!

PatnosD said:
How?!
Click to expand...
Click to collapse
A VERY VERY VERY complex process. It turns out the answer was a very simple one. They sold me a stolen phone with the IMEIs changed, so at the moment that I factory reset the phone, the "fake" IMEIs were cleared, leaving the phone with NULL IMEIs. In short, I got scammed, had to sell the phone declaring the situation, ofc for a quite discounted price due to the fact of it being a stolen phone.
ALERT 1: WHEN YOU'RE GONNA BUY A SAMSUNG PHONE, ASK THE SELLER IF IT CAN BE FACTORY RESET RIGHT IN FRONT OF HIM/HER BEFORE PAYING. IF THE SELLER SAYS YOU CAN'T, YOU CAN ALREADY GUESS WHAT'S GOING ON.
ALERT 2: NOW THEY CAN CRACK THE SAMSUNG PHONE IMEIS SO IF YOU FACTORY RESET, IT WOULD KEEP THE FAKE IMEIs, so the only thing you can do is go into this website:
IMEIpro - free Samsung IMEI checker
Check information about your Samsung cell phone - model, serial number, manufacture date. Verify Samsung carrier, age of the phone, purchase country, CSN number and other details.
imeipro.info
Enter the IMEI and the website will show you THE SERIAL NUMBER. COMPARE IT WITH THE ONE SHOWN IN THE PHONE. IF THEY DON'T MATCH, THE PHONE IMEI HAS BEEN CHANGED, LIKELY A STOLEN PHONE! DO NOT BUY IT!
This is the best guide I have for buying used samsung phones so far

Related

No Data on Sprint Suddenly

Short and sweet. I am unable to activate data all of a sudden on Sprint. My other family member's phones work fine, but I cannot update the profile or the PRL. It just says "Network Error, try again later." Phone calls work fine, and my baseband and all that jazz are showing. It also shows 3G occasionally, but it still says network disconnected. Any ideas would be greatly appreciated. Thanks!
Update: I've reflashed EFS, and that seems to get me data on most ROMs, except Android L and stock 4.4.4. The second they try to do hands-free/update profile or prl, the update fails and I can't get data. Any ideas? Could it possibly be my SIM card? What's weird is that even when I have a data connection(like on the restored efs), I still can't update profile or PRL...
I've searched the internet for the past week, and nothing has worked. I haven't had a chance to call Sprint and complain, but this is starting to be quite frustrating. I've had data the whole time, but I still can't update profile/prl or complete the hands-free activation. So I can't even go back to stock, because when I do the factory image, the hands-free fails.
Eww sorry man. Probably APN.
Sent from my Nexus 5 using XDA Free mobile app
What the.... So apparently sometime last night, my PRL updated on its own, like it's supposed to(old one was from old efs restore). But I still can't manually force the two to updates. So hands-free still fails upon a reset. This practically confirms that my phone is fine, because clearly it can receive the updates, just not pull them down. I'll call them today and #blamesprint.
APNs should be restored upon efs flash right? If not, how do I check them? The APN menu in settings doesn't appear when on the Sprint network.
Koopa777 said:
What the.... So apparently sometime last night, my PRL updated on its own, like it's supposed to(old one was from old efs restore). But I still can't manually force the two to updates. So hands-free still fails upon a reset. This practically confirms that my phone is fine, because clearly it can receive the updates, just not pull them down. I'll call them today and #blamesprint.
APNs should be restored upon efs flash right? If not, how do I check them? The APN menu in settings doesn't appear when on the Sprint network.
Click to expand...
Click to collapse
You'll have to download an APN app off of the Play Store. When I had Sprint there was weird issues with the bearer field. Also they have like 4 different APNs stock and there was one like i.ispnt or something that seemed to work but you had to select between bearer EHRPD (LTE network routed EVDO) or LTE.
All APN apps are giving me an error saying SIM card unknown, even when installed to system. One even says Virgin Mobile. Could this be an issue with my SIM card?
Could be a problem with your SIM card. I'd just take it into a Sprint store quickly and get it resolved.
I fiddled with APNs, there were 12 there(!), so I reentered the correct 5 and could reliably get data. I factory reset and now my phone is unprogrammed(no MIN and wrong phone number), I'm just going to go yell at Sprint now. :fingers-crossed:
Sprint was useless, the tech kept blaming the phone, saying things like "Nexus phones don't have dialer codes" and "your IMEI is bad(WTF?)", then she noticed the padlock on the boot screen where she refused to go further, saying that I tampered with my device. After I informed her that it was MY device(purchased unlocked from Google) and that Sprint had no legal claim to that device, she redirected me to Advanced Phone Support. She also refused to give me a new UICC card, saying that "it couldn't be the problem." I'm done with Sprint for the week, so I'm just going to go custom again and just set the APNs properly each time. Even on stock/L, I can just flash the Sprint APN zip to automatically fix them, correct? If so, where could I find the latest APNs? The latest zip I have is from March or so I believe. Thanks!
Also out of curiousity, how hard do you think it would be to force my way out of a contract ETF-free? I figure if they can't prove it's my device that's faulty, and they aren't giving me a product that I'm paying for.......
Koopa777 said:
Sprint was useless, the tech kept blaming the phone, saying things like "Nexus phones don't have dialer codes" and "your IMEI is bad(WTF?)", then she noticed the padlock on the boot screen where she refused to go further, saying that I tampered with my device. After I informed her that it was MY device(purchased unlocked from Google) and that Sprint had no legal claim to that device, she redirected me to Advanced Phone Support. She also refused to give me a new UICC card, saying that "it couldn't be the problem." I'm done with Sprint for the week, so I'm just going to go custom again and just set the APNs properly each time. Even on stock/L, I can just flash the Sprint APN zip to automatically fix them, correct? If so, where could I find the latest APNs? The latest zip I have is from March or so I believe. Thanks!
Also out of curiousity, how hard do you think it would be to force my way out of a contract ETF-free? I figure if they can't prove it's my device that's faulty, and they aren't giving me a product that I'm paying for.......
Click to expand...
Click to collapse
thats easy force it to data roaming and start streaming the heck out of anything and everything overnight. Sprint will terminate your contract if your roaming data is consistently to high.

Locked out of phone in China!! :/ S6 SM-920F

Hi!
So I have a Galaxy S6 which came with a Dutch T-mobile package. On my way to China, where I moved a few weeks ago for an indefinite period, I cracked the screen and brought it to the local repairman to fix. That went perfectly well, but the phone didn't recognize my fingerprint anymore and I forgot my backup password. That's why I performed a factory reset, and that's where the real trouble began.
After the reset, I tried setting up the phone again, and got to the Samsung reactivation screen. I entered my account info, and provided the password for the wifi, after which the phone connected to wifi (with the corresponding message), but after a few seconds I get a pop up message saying "Unable to connect to the Internet" - even though the wifi symbol would still flash its arrows in the upper right corner. Thus, I can't get past this screen nor in my phone, which is quite a devastating fact as a poor new expat in China . Tried several other wifi networks, to no avail.
My guess is that it's the Great Firewall of China acting here, somehow preventing the phone to connect to the Samsung (and/or Google) network to check my info. I don't know if this is correct, the Samsung helpdesk couldn't say for sure as well, but I really really want to find a workaround here. Once I get the phone working again I can install a VPN to have the Google stuff working in China, but this way I can't get to that point. Now I am completely new to rooting/ installing ROMS and the works, but I am willing to try anything to get this expensive piece of electronics to work out here.
Any helping comment is an absolute lifesaver, and I will name my firstborn child after you!!
Thanks so much!
All the best, Maarten
EDIT: I made some screenshots, but appearantly I am not allowed to post outside links yet.

Need help with SIM Network Lock (SM-J700M)

Alright, so, last weekend I got a new Samsung Galaxy J7 with Android 6.0.1. The first thing I did was rooting it. It was all going fine until I accidentally unticked the "OEM Unlock" option on Developer Mode, so when I rebooted it, it had an FRP Lock.
I used a Latin American firmware to be able to boot it again. At boot, there was this "entel" logo, and this seemed to have changed my IMEI because my phone always said Network Unavailable. I didn't check the IMEI prior to rooting it, but I noticed the printed one and the one shown on the phone weren't the same... but this isn't the real problem.
Originally, the phone was unlocked (no specific carrier/operator holding it), and I somehow "fixed" the Network Unavailable thing by erasing the efs folder on root... well, it was a longer process than just deleting it, I backed up the folder and copied some files (some might know what I'm talking about). After that, the IMEI was the same than the printed one, but, my phone is now network SIM locked!
I have to input a code to unlock it. I did some googling and apparently only the carrier can give it to you, so I tried 3 different carrier SIM cards to see if any of them were the carrier's, but none of them worked as accepted,and I don't know what carrier could it be... I'm even worried it may be a Latin American one (from Chile or Argentina maybe since that's where the firmware used was from) and I won't be able to get it.
I know there are websites to get a code, but I don't want to pay so much and risk getting scammed.
I tried to see if "entel" was a carrier to unlock it, but it didn't help.
Also, when I try to choose a network on Mobile Networks settings, the only available one is AT&T (which I don't use/have a SIM of), but when I accessed their website to unlock, it said my IMEI wasn't registered as theirs apparently.
Then, I also tried using Samsung's Smart Switch application on PC with the Device Initialization option, but when I try to use the firmware from that I get a SW REV. Check Fail.
I might be wrong, but I feel that since messing with the system files/root was what changed it, maybe I can fix it the same way with no unlock code or carrier help.
So, does anyone have advice, or know some other way to reset it? Or do I really have to go get it fixed/unlocked somewhere?
frostx said:
Alright, so, last weekend I got a new Samsung Galaxy J7 with Android 6.0.1. The first thing I did was rooting it. It was all going fine until I accidentally unticked the "OEM Unlock" option on Developer Mode, so when I rebooted it, it had an FRP Lock.
I used a Latin American firmware to be able to boot it again. At boot, there was this "entel" logo, and this seemed to have changed my IMEI because my phone always said Network Unavailable. I didn't check the IMEI prior to rooting it, but I noticed the printed one and the one shown on the phone weren't the same... but this isn't the real problem.
Originally, the phone was unlocked (no specific carrier/operator holding it), and I somehow "fixed" the Network Unavailable thing by erasing the efs folder on root... well, it was a longer process than just deleting it, I backed up the folder and copied some files (some might know what I'm talking about). After that, the IMEI was the same than the printed one, but, my phone is now network SIM locked!
I have to input a code to unlock it. I did some googling and apparently only the carrier can give it to you, so I tried 3 different carrier SIM cards to see if any of them were the carrier's, but none of them worked as accepted,and I don't know what carrier could it be... I'm even worried it may be a Latin American one (from Chile or Argentina maybe since that's where the firmware used was from) and I won't be able to get it.
I know there are websites to get a code, but I don't want to pay so much and risk getting scammed.
I tried to see if "entel" was a carrier to unlock it, but it didn't help.
Also, when I try to choose a network on Mobile Networks settings, the only available one is AT&T (which I don't use/have a SIM of), but when I accessed their website to unlock, it said my IMEI wasn't registered as theirs apparently.
Then, I also tried using Samsung's Smart Switch application on PC with the Device Initialization option, but when I try to use the firmware from that I get a SW REV. Check Fail.
I might be wrong, but I feel that since messing with the system files/root was what changed it, maybe I can fix it the same way with no unlock code or carrier help.
So, does anyone have advice, or know some other way to reset it? Or do I really have to go get it fixed/unlocked somewhere?
Click to expand...
Click to collapse
Did you ever get anywhere with this? I am trying to switch carriers from t mobile to boost on the Sm-j700f and I need to unlock it

Need help with SIM Network Lock

(I accidentally posted this in an unrelated discussion so sorry if it appears twice!)
Alright, so, last weekend I got a new Samsung Galaxy J7 (SM-J700M) with Android 6.0.1. The first thing I did was rooting it. It was all going fine until I accidentally unticked the "OEM Unlock" option on Developer Mode, so when I rebooted it, it had an FRP Lock.
I used a Latin American firmware to be able to boot it again. At boot, there was this "entel" logo, and this seemed to have changed my IMEI because my phone always said Network Unavailable. I didn't check the IMEI prior to rooting it, but I noticed the printed one and the one shown on the phone weren't the same... but this isn't the real problem.
Originally, the phone was unlocked (no specific carrier/operator holding it), and I somehow "fixed" the Network Unavailable thing by erasing the efs folder on root... well, it was a longer process than just deleting it, I backed up the folder and copied some files (some might know what I'm talking about). After that, the IMEI was the same than the printed one, but, my phone is now network SIM locked!
I have to input a code to unlock it. I did some googling and apparently only the carrier can give it to you, so I tried 3 different carrier SIM cards to see if any of them were the carrier's, but none of them worked as accepted,and I don't know what carrier could it be... I'm even worried it may be a Latin American one (from Chile or Argentina maybe since that's where the firmware used was from) and I won't be able to get it.
I know there are websites to get a code, but I don't want to pay so much and risk getting scammed.
I tried to see if "entel" was a carrier to unlock it, but it didn't help.
Also, when I try to choose a network on Mobile Networks settings, the only available one is AT&T (which I don't use/have a SIM of), but when I accessed their website to unlock, it said my IMEI wasn't registered as theirs apparently.
Then, I also tried using Samsung's Smart Switch application on PC with the Device Initialization option, but when I try to use the firmware from that I get a SW REV. Check Fail.
I might be wrong, but I feel that since messing with the system files/root was what changed it, maybe I can fix it the same way with no unlock code or carrier help.
So, does anyone have advice, or know some other way to reset it? Or do I really have to go get it fixed/unlocked somewhere?

G970U1 has the wrong CSC I think - causing issues - how to fix?

Hello, and thanks in advance for any assistance y'all can provide.
I should preface this by saying that I'm comfortable tinkering with software and am technically inclined, but have only a vague understanding of what exactly a CSC code is and haven't flashed anything on a phone since tinkering with my old Galaxy S Captivate.
My wife and I bought "factory unlocked" S10e's via Amazon's "renewed" program. They have no visible branding, physically or in the software, and report their model as G970U1, as advertised. We're both on Cricket. My phone works without issue but she's been getting texts from Cricket for a few weeks saying that she needed to update her phone by 2/22/22, but the "software update" tool reports that the phone is up to date. Since that date, she's been unable to send or receive phone calls, but texts and mobile data still work as normal.
Going by the "Software Information" page, the phones are nearly identical in software versions, with the only difference in the two is the "Service provider software information" string. As best I understand, this displays the CSC code in the string, as "...OYM_[CSC]...".
Going by this, my phone has the correct CSC for Cricket, but my wife's phone has somehow obtained the code for T-Mobile. Given that this is the only software difference between the two, I can only assume that it's the culprit? (If not, what else could be causing this?)
I'm not 100% sure if this is something that we could have caused, or if the phone could have been de-branded somehow (again, no physical markings) and resold with a CSC already on it?
I've tried changing the CSC by using the code in google dialer, but it just throws a vague error and nothing happens. I'm not sure how to proceed from here? From googling around, I saw that flashing new firmware using Odin and Frija(?) can get the job done, but also requires resetting the phone and comes with some risk?
I'd like to avoid resetting the phone if possible, as it's also her interface to her glucose monitor (Type 1 diabetic), and this takes quite a long time to set up. From some searching, it seems there's a paid tool called Chimera that at least one person claimed can change the CSC without resetting. Is that accurate? If that's not correct, is there a better way?
Apologies for the wall of text, I hope I've provided enough information. Again, thanks to anyone who can provide guidance.

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