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Hi.
Yesterday I bought a P7-L10.
For what I read, it's a single sim phone, but since there are several versions, but some say they are all the same, could there be any mod that could turn my L-10 into a dual-sim phone?
Thanks in advance for your answers
No-one replied and I doubt they will.
The short answer is no you cant.
The long technical answer is the phone is made with certain hardware I would ask you first how do you think a mod would work try to think that one through logically.
The phone only has one simcard slot and one antenna and the software / drivers is compiled and installed accordingly.
If you think you can just buy a usb simcard adaptor and magically turn the device into dual sim it doesn't work that way.
And if you didn't want a external device connected by your usb plug you would need to modify the internal phones SMD surface mounted hardware and thats not easy when they are built on robotic machines as you can see in this video.
Think about rooting all system level things is behind root and the rom would need to be modified for such functionality if it even existed.
Also the actual hardware and eproms inside the phone isn't designed or coded to work this way even if there is a usb simcard adaptor.
There is a modula phone in concept Project Ara by Google and another phone had a kickstarter that failed to get the concept of the ground and this could be the only way to do it in the future if the concept is realised.
Thats the basics of it simple and technical wise.
drguild said:
No-one replied and I doubt they will.
The short answer is no you cant.
Click to expand...
Click to collapse
This is not entirely true.
Huawei suggested there was dual-SIM capability in the Ascend P7 at its launch, with a second SIM supposedly able to sit in the SD card slot if you value connectivity over storage space.
samoborac said:
This is not entirely true.
Huawei suggested there was dual-SIM capability in the Ascend P7 at its launch, with a second SIM supposedly able to sit in the SD card slot if you value connectivity over storage space.
Click to expand...
Click to collapse
That is true for the dual Sim models like L00 that I use as I do use 2 sims.
The question was how to mod his single sim phone L10 to dual Sim which I answered correctly as the single Sim models hardware is lacking the physical bits and drivers in the kernel etc for a second Sim card likewise how the L00 lacks the internal hardware components and drivers in the kernel for NFC, this is also why the Roms are incompatible between models as well as different components like the radio freq for different regions which they all use different kernel drivers.
It would be the same if a L00 user asked how to mod NFC into his phone when there is no physical tag reader component on the circuit board.
The question was not if the p7 came in a dual Sim variant.
I was also correct on project Ara concept as no phone currently available in the world let's you change internal components like upgrade or swap your camera from 8mp to 15mp or swap in in a screen with higher DPI, memory or internal storage or even swap the sdcard module for a second Sim or something.
It's a concept Google and some others are looking at our of interest just because they can.
i think drguild is right. may be the same reason why huawei didn't include the L-10 to the list of phones that will recieve OTA firmware upgrade., Only the L-10 phone can't use dual sim., it doesn't even have any features or some sort of settings for it., even if the micro SD slot can adopt the nano sim. it seems that it doesn't have a way to operate it.,
this is not a down for this phone. single sim phone has lot of advantages than dual sim phone. like battery consumption., and phone speed.
some samsung models can enable single sim to dual sim. like s7. some asus phones can changing sim module to dual enabling dual sim but with single imei. i have damaged p7 single sim i tired change sdcard slot to dual sim holder but does not worked.
Just to put to rest the rumor that the hardware is different, here is a picture of the SIM/SD slot on my N950N (Korean single SIM model), which you can clearly see both SIM slot pins, as well as the SD pins.
Mind you the single SIM models only come with one IMEI so I have no idea if you can use one for a dual SIM setup, but the hardware most certainly is the same.
Also, bonus pic showing that this part is apparently labeled for an N95OU which is the north American Snapdragon model. Must be sharing quite a few parts even with those ones eh?
Hi Kalm_Traveler,
I buy a N95OU1 north American Snapdragon model. I buy a dual SIM tray in Amazon. How can I make the 2 SIMs works? It's possible?
Regards, Fersoft
fersoft said:
Hi Kalm_Traveler,
I buy a N95OU1 north American Snapdragon model. I buy a dual SIM tray in Amazon. How can I make the 2 SIMs works? It's possible?
Regards, Fersoft
Click to expand...
Click to collapse
That's the thing, as Kalm_Traveler is pointing out, you only have one IMEI. Dual sim phones have 2 IMEIs. How would you obtain a second IMEI to use to use legally? And you would need root access to configure it to work even if you did happen to have a second IMEI to use.
shouren04 said:
That's the thing, as Kalm_Traveler is pointing out, you only have one IMEI. Dual sim phones have 2 IMEIs. How would you obtain a second IMEI to use to use legally? And you would need root access to configure it to work even if you did happen to have a second IMEI to use.
Click to expand...
Click to collapse
I legally own 3 old phones (Blackberry & other model) where I could easily get valid and, again, perfectly legal IMEI's;
so besides the legal concern, which does not apply in this case, it would be interesting to know if it's possible (or will be) to root the phone and enable somehow its dual sim capability having a 2nd IMEI (owned and legal) available to set up.
If the hardware is really the same we have just to wait, maybe
asterlox said:
I legally own 3 old phones (Blackberry & other model) where I could easily get valid and, again, perfectly legal IMEI's;
so besides the legal concern, which does not apply in this case, it would be interesting to know if it's possible (or will be) to root the phone and enable somehow its dual sim capability having a 2nd IMEI (owned and legal) available to set up.
If the hardware is really the same we have just to wait, maybe
Click to expand...
Click to collapse
Try changing this line in build.prop and see what happens.
ro.multisim.simslotcount=1
To
ro.multisim.simslotcount=2
ProtoDeVNan0 said:
Try changing this line in build.prop and see what happens.
ro.multisim.simslotcount=1
To
ro.multisim.simslotcount=2
Click to expand...
Click to collapse
On my Note8 monosim brand HUI Italia and rebrand Vodafone Italia in build.prop have already line ro.multisim.simslotcount=2 but not have any menu for dualsim. My phone not have root access.
To make the menus appear, do you need the dualsim cart?
overfrenk said:
On my Note8 monosim brand HUI Italia and rebrand Vodafone Italia in build.prop have already line ro.multisim.simslotcount=2 but not have any menu for dualsim. My phone not have root access.
To make the menus appear, do you need the dualsim cart?
Click to expand...
Click to collapse
+1
Enviado desde mi SM-N950F mediante Tapatalk
On my N950U1 (Snapdragon US Samsung unlocked, non-dual SIM), using Shortcut Master app, I found the working dual sim menu. See attached ss.
So also SD Notes could be dual sim capable.
OnnoJ said:
On my N950U1 (Snapdragon US Samsung unlocked, non-dual SIM), using Shortcut Master app, I found the working dual sim menu. See attached ss.
So also SD Notes could be dual sim capable.
Click to expand...
Click to collapse
Can you please tell me how to do it? I own the sm-n950f single sim European version.
1. Install Shortcut Master (lite) from Google Play.
2. Select 'app explorer' from menu.
Select 'system apps' from pull down list.
3. Scroll down to and select
'Mobile networks' (com.samsung.networkui),
4. Scroll down to and select
'MobileNetworkSettingsTab' (com.samsung.networkui.MobileNetworkSettingsTab)
5. Press 'Launch'
I have not been able to actually test whether 2nd slot works, as I am waiting on delivery of dual-SIM tray...
I don't think it has the software to work - you would need to have some way to add Stk2, and more importantly the libsec-ril-dsds.so libraries.
Your probably right, but will see what happens when $3 tray arrives ...
OnnoJ said:
1. Install Shortcut Master (lite) from Google Play.
2. Select 'app explorer' from menu.
Select 'system apps' from pull down list.
3. Scroll down to and select
'Mobile networks' (com.samsung.networkui),
4. Scroll down to and select
'MobileNetworkSettingsTab' (com.samsung.networkui.MobileNetworkSettingsTab)
5. Press 'Launch'
I have not been able to actually test whether 2nd slot works, as I am waiting on delivery of dual-SIM tray...
Click to expand...
Click to collapse
Thank you so much for your help! Did you flash the dual sim rom yet ? I have also read at the forum that it actually works but we need to change some files with the similar of the dual version. (https://forum.xda-developers.com/galaxy-note-8/help/galaxy-note-8-n950f-modding-dual-sim-t3685255) May i ask where did you get the dual sim tray from? Here in Greece it's unavailable. Thanks again and i hope everything goes well!
I did not flash anything yet... As I have SD, will /can not root easily..
Just search 'SIM tray Note 8' on Ebay...
Ok i have already subscribed to this subject so if you receive the tray and you make the dual sim work please write something here so that I will try it also to my device. (please forgive my English)
Thanks again for your support and best wishes to you for 2018!
wonder if you can just flash the duos firmware without root if you have the OEM unlock option available and get a dual sim tray?
---------- Post added at 04:20 PM ---------- Previous post was at 03:24 PM ----------
OnnoJ said:
On my N950U1 (Snapdragon US Samsung unlocked, non-dual SIM), using Shortcut Master app, I found the working dual sim menu. See attached ss.
So also SD Notes could be dual sim capable.
Click to expand...
Click to collapse
same on my unlocked exynos model
ok, scratch my first question, firmware is the same for both Single and Duos anyway.
I have a second dual sim tray coming in the post and also have an old Samsung phone I can use imei number from to be legit so will take it from there, once I set up my dual sim I don't think I'll mind rooting this single sim as you still get OTA as long as you don't install custom Rom
just did a quick check here in case it helps anyone...
took the tray out of my dual sim to stick into my single sim Note, dual tray won't go in unless I put a sim into slot one so did that with an old inactive one and put my own sim into tray 2, rebooted just for the sake of it, can still make and take calls etc... but looking at sim info in settings... about phone... it showed sim as inactive and no mac address, I'll try with 2 active Sims when I get my hands on one over the next days.
Hopefully any small info gathered can help determine how easy/hard it will be to get dual sim out of single sim
@Kalm_Traveler looks like you'll need to add dual sim capabilities to your zip once you get wifi calling working xD
On the N950F, could it perhaps be as simple as installing a dual SIM tray and then flashing the N950FD firmware? Or just editing some files on the current firmware.
Maybe the second IMEI will come from the hardware?
This is a running journal covering my attempts to stabilize a secondhand Note 5 prone to crashing. This first post summarizes the progress, and links to the current state of affairs below.
I've just acquired a second hand Note 5. It was sold as problematic, restarting continuously after loading the stock Marshmallow. 20 seconds or so, and it reboots.
After performing a factory reset the first time, Marshmallow loaded the configuration interface without any issue at all. Select region/language, choose WiFi network, give password, choose email account, give password, etc. Eventually it loaded into Marshmallow itself, no problem. It worked fine for half an hour or more. Then it froze and rebooted, during the automatic (app) updating process. After that, the screen would freeze after 20 seconds or so.
I tried another factory reset. This time it froze and restarted twice during the configuration interface, right when entering the WiFi password. After I got through it, and eventually loaded into Marshmallow, I turned off WiFi. It has been working without issue for an hour now.
I noticed a "dm-verity error" message at the bottom of the Marshmallow stock recovery screen. Perhaps importantly, eventually I recall that on the download screen the image and binary are identified as custom, not official.
See post #3 for more details.
By post #14 the phone has stabilized somewhat. Both WiFi and cellular function and the sudden restarts have been much less frequent. I successfully flash the Russian (SER) Nougat (7.0) firmware of November 2017. The restarts end completely, the battery performance is spectacular (1% per hour on idle) but l lose the cellular network.
By post #19 I suspect either a hardware or persistent data issue is involved, and find with *#0011# that the IMEI Status is NG. I am considering how to unbork the situation, as I didn't make an EFS backup.
By post #23 I have restored network service, but no matter how thoroughly I wipe and flash stock firmwares I'm left with the original issue: constant freezes and restarts. Then, without any discernable reason everything is smooth for days. This odd behavior leaves me wondering whether it's not a hardware issue, but the previous owner borked partitions that aren't affected by flashing firmware. I decide to try and make a full backup, including all hidden partitions normally not included. And see what happens if the next time the phone starts crashing, I restore that backup. But how do I make and restore a full EMMC backup?
It turns out the internal storage of a Note 5 is actually UFS, not EMMC and XDA turned out to be a dry well on full (EMMC) backup and if Google had answers, persistent searching for a week or so didn't turn anything up. Android backup seems an ill defined and ill standardized field. Many options, many superficial. What imaging there is, is spotty and generally incomplete, "proprietary" and not easily restorable.
When after a month smooth operation things go pear-shaped again (post #24) I've got no backup to restore. Not that it would have mattered probably. I suspect it's probably a NAND/EMMC/UFS issue at the back of it all. Now, with Note 5 not officially marketed or supported in the EU, how do I find the parts that I need and fix them?
In the end I replaced the motherboard with one I bought on eBay. The process was simple, using a YouTube video to walk me through the steps. I did walk into a peculiar circuit sticker which was partly stuck to the top of the inside of the cover, and tore. The switch out worked without a hitch but I'm trying to figure out what the sticker is. See my last post.
You bought it rooted and with stock android? To my knowledge not everything is stable with stock android on the note 5! If this phone is your daily you should flash a Samsung based Rom to avoid those reboot issues... or even returning the phone back to stock via Odin!
Well. The print on the back says SM-N920F, but the Odin menu says "product name: SM-N920C". As the IMEI and serial numbers printed on the back also do not match those reported by *#06# I'd say it's a reasonable guess the phone is a fake. The device information in settings indicates the Note 5 is running baseband N920CXXU3BQA1, Android 6.0.1.
So. If the fake would work well, I wouldn't mind. It doesn't for now, though. Given the issues described in the first post, I'm thinking it may have a corrupt stock ROM or a conflict between it's actual (or compatible) model and the ROM that's either installed or it's getting updates for. As a fake, it may even have mixed components of various models SM-N920C and SM-N920I, for example.
How does one get the right ROM for a fake? How does one figure out which parts are actually in the phone, that determine which ROM is needed?
However much you paid for your note 5 can easily determine if its fake or not! Right Now a like new/mint Note 5 (according to swappa) goes for about $220 or less. There are many signs to that hint at a chinese knock off. Simply youtube search "fake v real" note 5.
If your phone is a fake Note 5 theres not much you can do software wise. Not even something like nova launcher will help you. I've seen these knockoffs in person. They are unbearable to use as a daily. The hardware in the knockoff versions aren't even close to what the real Note 5 has.
Crike said:
Well. The print on the back says SM-N920F, but the Odin menu says "product name: SM-N920C". As the IMEI and serial numbers printed on the back also do not match those reported by *#06# I'd say it's a reasonable guess the phone is a fake. The device information in settings indicates the Note 5 is running baseband N920CXXU3BQA1, Android 6.0.1.
So. If the fake would work well, I wouldn't mind. It doesn't for now, though. Given the issues described in the first post, I'm thinking it may have a corrupt stock ROM or a conflict between it's actual (or compatible) model and the ROM that's either installed or it's getting updates for. As a fake, it may even have mixed components of various models SM-N920C and SM-N920I, for example.
How does one get the right ROM for a fake? How does one figure out which parts are actually in the phone, that determine which ROM is needed?
Click to expand...
Click to collapse
It doesn't necessarily mean it's fake, it just have motherboard from other phone, download rom for n920c and flash it using odin and you should be working fine.
El Solido said:
It doesn't necessarily mean it's fake, it just have motherboard from other phone, download rom for n920c and flash it using odin and you should be working fine.
Click to expand...
Click to collapse
I can see how that might be, and why the IMEI on the back and the one reported by *#06# would then be different. The thing is, the 15 digit IMEI printed on the back (357XXX/XX/XXXXXX/X) is invalid according to www.imeipro.info, imei24.com and www.imei.info. How could that be the case on a genuine Samsung? (I tested the IMEI as a single string of numbers, without the slashes printed on the back, as given above.) Also, the IMEI reported by *#06# is resolved by the above-mentioned sites as a 2005 Philips 960. That doesn't square with the idea of a cannibalized motherboard, I'd say.
That said, the build quality is very high if it is a fake: excellent manufacture; 16MB camera; well working, slickly spring loaded, pressure sensitive S-Pen with functioning button; fingerprint reader that works (correctly distinguishing the scanned finger from others); high resolution AMOLED screen.
It's an odd duck.
Crike said:
I can see how that might be, and why the IMEI on the back and the one reported by *#06# would then be different. The thing is, the 15 digit IMEI printed on the back (357XXX/XX/XXXXXX/X) is invalid according to www.imeipro.info, imei24.com and www.imei.info. How could that be the case on a genuine Samsung? (I tested the IMEI as a single string of numbers, without the slashes printed on the back, as given above.) Also, the IMEI reported by *#06# is resolved by the above-mentioned sites as a 2005 Philips 960. That doesn't square with the idea of a cannibalized motherboard, I'd say.
That said, the build quality is very high if it is a fake: excellent manufacture; 16MB camera; well working, slickly spring loaded, pressure sensitive S-Pen with functioning button; fingerprint reader that works (correctly distinguishing the scanned finger from others); high resolution AMOLED screen.
It's an odd duck.
Click to expand...
Click to collapse
I would say thats stolen phone with random imei put on it, but I can't be sure.
PS Fake won't have working s pen
El Solido said:
I would say thats stolen phone with random imei put on it, but I can't be sure.
PS Fake won't have working s pen
Click to expand...
Click to collapse
That wouldn't explain the incorrect IMEI on the back. Perhaps a stolen fake? But then, why would it be so high grade? The S-Pen and all the specs seem to point at something else. Perhaps a recall, with a bad IMEI, resold. But even if somehow they'd sell it on as refurbished with a proper IMEI, would they leave a backplate with a wrong IMEI on it? And then that one was stolen and given a 2005 IMEI of an old Philips? It's a bit of a mystery.
Putting that all aside, how'd I pick the proper ROM? The SM-N920C has a ton of variations for regions and carriers, none of which are in the EU. I live in the Netherlands, so I'd need a version which would work in the region and doesn't SIM-lock my phone after flashing, if that's possible. The current ROM seems to be for the United Arab Emirates. Right now, it's working stable, WiFi and cellular network alike. But it has been playing up before, with the freezes and restarts that caused me to start the thread at all.
Do you have any words of wisdom?
Perhaps you could upload a few pics of the device or even a video of it? That will be a better way to get help.
Crike said:
That wouldn't explain the incorrect IMEI on the back. Perhaps a stolen fake? But then, why would it be so high grade? The S-Pen and all the specs seem to point at something else. Perhaps a recall, with a bad IMEI, resold. But even if somehow they'd sell it on as refurbished with a proper IMEI, would they leave a backplate with a wrong IMEI on it? And then that one was stolen and given a 2005 IMEI of an old Philips? It's a bit of a mystery.
Putting that all aside, how'd I pick the proper ROM? The SM-N920C has a ton of variations for regions and carriers, none of which are in the EU. I live in the Netherlands, so I'd need a version which would work in the region and doesn't SIM-lock my phone after flashing, if that's possible. The current ROM seems to be for the United Arab Emirates. Right now, it's working stable, WiFi and cellular network alike. But it has been playing up before, with the freezes and restarts that caused me to start the thread at all.
Do you have any words of wisdom?
Click to expand...
Click to collapse
To know for sure do geekbench 4 then we will now is it fake or not. And for rom you can't sim lock by installing firmware.
Crike said:
That wouldn't explain the incorrect IMEI on the back. Perhaps a stolen fake? But then, why would it be so high grade? The S-Pen and all the specs seem to point at something else. Perhaps a recall, with a bad IMEI, resold. But even if somehow they'd sell it on as refurbished with a proper IMEI, would they leave a backplate with a wrong IMEI on it? And then that one was stolen and given a 2005 IMEI of an old Philips? It's a bit of a mystery.
Putting that all aside, how'd I pick the proper ROM? The SM-N920C has a ton of variations for regions and carriers, none of which are in the EU. I live in the Netherlands, so I'd need a version which would work in the region and doesn't SIM-lock my phone after flashing, if that's possible. The current ROM seems to be for the United Arab Emirates. Right now, it's working stable, WiFi and cellular network alike. But it has been playing up before, with the freezes and restarts that caused me to start the thread at all.
Do you have any words of wisdom?
Click to expand...
Click to collapse
Also, maybe it was stolen before being registered on the network, and had imei changer beforehand activating.
El Solido said:
Also, maybe it was stolen before being registered on the network, and had imei changer beforehand activating.
Click to expand...
Click to collapse
Like being from a container of original phones that fell from a ship? Not a single one lifted by a pickpocket.
Whatever the case may be, geekbench 4 reports the same hardware as on Wikipedia. Unfortunately the CPU test keeps crashing the phone at around 60% - about a minute or two into the test. So I don't have a benchmark to compare with established Note 5 performance.
How would you recommend I pick a ROM with the best chance of functioning in the region?
Crike said:
Like being from a container of original phones that fell from a ship? Not a single one lifted by a pickpocket.
Whatever the case may be, geekbench 4 reports the same hardware as on Wikipedia. Unfortunately the CPU test keeps crashing the phone at around 60% - about a minute or two into the test. So I don't have a benchmark to compare with established Note 5 performance.
How would you recommend I pick a ROM with the best chance of functioning in the region?
Click to expand...
Click to collapse
Use russian firmware, only european rom i saw.
El Solido said:
Use russian firmware, only european rom i saw.
Click to expand...
Click to collapse
Tried flashing but Odin 3.07 seems to hang on "NAND writing started!" After 30 minutes I examined the Odin process in Windows' Task Manager, and it seemed completely inactive (0% CPU). Tried again, same result. Restarted the phone, and it booted straight into the existing ROM, which appeared completely unaltered.
I'd like to try another Odin version. Is there a trustworthy site?
El Solido said:
Use russian firmware, only european rom i saw.
Click to expand...
Click to collapse
Downloaded the latest Odin from the thread on XDA: PASS. Upgraded successfully to the latest Russian Nougat release.
Unfortunately, now I have "Emergency calls only", and I get an "Error while searching for networks" when trying Settings\Mobile Networks\Network Operators\Search Networks. Available network modes are LTE/3G/2G.
Also, geekbench 4 still crashes at around 60% as it did before.
The upgrade wasn't clean, the previous apps and settings still remained after flashing.
Perhaps a full wipe and a clean flash, perhaps again a United Arab Emirates variant? That ROM did work with my mobile network.
Crike said:
Odin: PASS. Upgraded successfully to the latest Russian Nougat release.
Unfortunately, now I have "Emergency calls only", and I get an "Error while searching for networks" when trying Settings\Mobile Networks\Network Operators\Search Networks. Available network modes are LTE/3G/2G.
Also, geekbench 4 still crashes at around 60% as it did before.
The upgrade wasn't clean, the previous apps and settings still remained after flashing.
Perhaps a full wipe and a clean flash, perhaps again a United Arab Emirates variant? That ROM did work with my mobile network.
Click to expand...
Click to collapse
Ok now first thing go flash that united arab emirates rom, after that go to stock recovery do factory reset.
El Solido said:
Ok now first thing go flash that united arab emirates rom, after that go to stock recovery do factory reset.
Click to expand...
Click to collapse
There are two UAE (United Arab Emirates) ROMs: LYS and XSG. Both fail in Odin, while the Russian ROM succeeds. I've tried multiple times.
I noticed that while the order of images (boot.img, recovery.img, system.img, etc) differs between all three ROMs, both UAE ROMs fail shortly after hidden.img.
The Russian Nougat ROM works well and is apparently stable. The only issue is that the phone can't connect to or find mobile networks and emergency calls only are possible.
Can the Russian ROM be patched with the appropriate modules from another ROM? How would I determine what kind of network module is required in the EU, and from which ROM to pilfer it?
I'm thinking about flashing the United Arab Emirates modem.bin file over the existing Russian ROM modem.bin with ADB/Fastboot. How bad of idea is that?
Another idea would be to extract a United Arab Emirates ROM, remove the hidden.bin (possibly replace it with the one from the Russian ROM) and the compress the files into a new .md5 file with Universal Android Toolkit.
Crike said:
There are two UAE (United Arab Emirates) ROMs: LYS and XSG. Both fail in Odin, while the Russian ROM succeeds. I've tried multiple times.
I noticed that while the order of images (boot.img, recovery.img, system.img, etc) differs between all three ROMs, both UAE ROMs fail shortly after hidden.img.
The Russian Nougat ROM works well and is apparently stable. The only issue is that the phone can't connect to or find mobile networks and emergency calls only are possible.
Can the Russian ROM be patched with the appropriate modules from another ROM? How would I determine what kind of network module is required in the EU, and from which ROM to pilfer it?
I'm thinking about flashing the United Arab Emirates modem.bin file over the existing Russian ROM modem.bin with ADB/Fastboot. How bad of idea is that?
Another idea would be to extract a United Arab Emirates ROM, remove the hidden.bin (possibly replace it with the one from the Russian ROM) and the compress the files into a new .md5 file with Universal Android Toolkit.
Click to expand...
Click to collapse
You could try that, but first try factory reset then try flashing rom.
El Solido said:
You could try that, but first try factory reset then try flashing rom.
Click to expand...
Click to collapse
I've checked the SIM and it's in good condition. I've tried a number of firmwares, none of which resolves the "No service" issue. I've spoken to several Dutch Note 5 owners and they seem to have a variety of Iraqi, UAE and Russian firmwares and those all work.
It would seem it either ~ is ~ a hardware issue after all or there's some borked data which isn't affected by flashing, either on the phone's own memory (like the /efs folder) or in the modem/radio itself, if that has programmable memory.
Edit: *#0011# shows "IMEI Status NG".
I do not have an EFS backup.
I need some serious guidance beyond this point.
Is there software to determine if there is a hardware issue with the modem board? What else could I do beyond this point? I'm not ready to hand it over to a repair service.
Also, if the phone does have bars and call emergency services, doesn't that mean the modem/radio itself is working? Is there a forum I should look to for more help on this issue?
Crike said:
I've checked the SIM and it's in good condition. I've tried a number of firmwares, none of which resolves the "No service" issue. I've spoken to several Dutch Note 5 owners and they seem to have a variety of Iraqi, UAE and Russian firmwares and those all work.
It would seem it either ~ is ~ a hardware issue after all or there's some borked data which isn't affected by flashing, either on the phone's own memory (like the /efs folder) or in the modem/radio itself, if that has programmable memory.
Edit: *#0011# shows "IMEI Status NG".
I do not have an EFS backup.
I need some serious guidance beyond this point.
Is there software to determine if there is a hardware issue with the modem board? What else could I do beyond this point? I'm not ready to hand it over to a repair service.
Also, if the phone does have bars and call emergency services, doesn't that mean the modem/radio itself is working? Is there a forum I should look to for more help on this issue?
Click to expand...
Click to collapse
Ok since you can't flash firmware you want, extract it from .tar and select it in CP in Odin 3.12.xx and maybe it will work then. gl
I just got a new S21 Ultra dual sim Latin American variant, because no US version dual sim Samsung exists. I have a US Version Galaxy Watch 3 that pairs nicely with it, except when the health monitor app on the phone tries to open for the ECG I get an error saying that it is not available in my location. I verified with Samsung that this is because the phone is a non US variant and there is no way around this limitation (according to them), even though ECG is cleared for use in my home country (USA).
So an idea I am exploring now is to send this phone back (still in return period) and buy a UK variant dual sim S21 Ultra. My reasoning is that ECG is cleared for use in UK and apparently the health monitor app is working for the UK. I asked Samsung tech support and the agent said I would not be able to get through the health monitor "onboarding process" from a physical US location using a UK origin device. She didn't think using a UK IP VPN would help any, but she didn't seem sure. Still it seems like a legit idea to me ... the phone is from an "ECG cleared" country and I live in an "ECG cleared" country. But does logic apply with Samsung . . . I am not so sure anymore.
Do you think this idea would work?
Any other ideas of how I could end up with a dual sim S21 on which the health monitor app (ECG, etc) would work . . . that wouldnt risk bricking my phone?
Many thanks in advance for any help.
So here is a second idea to run past the experts here:
change CSC (currently set to TPA ) to XAA using method in this link:
Change CSC on Samsung Devices | Guide | iHax
Looking for a way to change CSC/Country Specific Code on your Samsung Galaxy device? Here's a quick guide on how to do it easily.
ihax.io
I actually pulled up that radio button screen to see what it currently was, but I chickened out of changing it
1) would this change make my dual sim phone a single sim phone?
2) is there a chance it would be impossible to revert back to TPA if the change caused problems?
3) any chance this change would brick the phone?
4) since I have 2 imei numbers, what is the result of making this change on only one imei?
5) do you think this change would solve the problem of not being able to start up and "onboard" the health monitor app?
Changing a csc from dual sim variant to dual sim variant shouldn't have any impact on IMEI. Almost no chance to brick the phone.
CSC just define preinstalled apps and features (ECG, call recording...)
I would say its worth the try but I can't guarantee anything
tiliarou said:
Changing a csc from dual sim variant to dual sim variant shouldn't have any impact on IMEI. Almost no chance to brick the phone.
CSC just define preinstalled apps and features (ECG, call recording...)
I would say its worth the try but I can't guarantee anything
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thanks for that. Actually Id be changing CSC from dual sim variant (Latin America) to single sim variant (USA). Do you think that would cause issues ... like break the dual sim functionality?
So I backed up and looked at this complete mess Samsung has me in trying to kludge their products into working after I paid a hefty price for them and I made a decision. Im still in the return period on everything. So everything is getting boxed back up for return (chargers/watch/phone/cables/etc). Im going to take that money and put it into a dual sim Iphone12 and Apple Watch 6 which apparently works very well in the USA right out of the box with no complicated hacks. Been awhile since I hitched myself to the Apple Wagon ... we'll see how it goes. So long Samsung. RELIEF!
so i tried the iphone for awhile and I just couldnt do it anymore. so the new iphone went to the wife, and i got a Note 20 Ultra (Tmobile brand) today and the dual sim (using esim) does work . . . BUT
1) you have to endure Tmobile unlock policy nonesense
2) the dual sim functionality isnt as finely controlable as iphone or dual sim androids. you select one which of the esim/sim will be "primary" and it will use data. so you cant have the physical sim as the data user and the esim as the primary voice/sms line.
annoying , but not insurmountable issues.
not a bad phone, but the bronze color is actually more like a pink. a big plus for some would be the expandable memory.
a HUGE con is the price . . . 1300 USD
apparently ONLY the TMobile branded us version Note 20's have the esim enabled.
Have you checked the watch does not have to be from a country that supports ECG feature not the phone?
I cannot confirm whether or not the country of the watch itself has any effect. All I can say for sure is the phone has to be a version from a country that supports the ECG feature.
Hi. I just flashed a my Samsung SM-G973N (CSC: Korea SK Telecom; Exynos 9820). I am not in Korea. I inserted my local SIM card and the phone does not recognized it. It does not request for an 'unlock code' when I turn it on. Rest of the phone is fine.
The phone is not rooted. Can you help me fix it?
If I am reading the screen correctly, the last line says that the IMEI is "NG" which may mean "Not Good" or "No Good"... this would imply that the phone has been blacklisted or it's not unlocked.
I don't know Exynos phones that well, so it could be something else, but this is where I would start.
schwinn8 said:
If I am reading the screen correctly, the last line says that the IMEI is "NG" which may mean "Not Good" or "No Good"... this would imply that the phone has been blacklisted or it's not unlocked.
I don't know Exynos phones that well, so it could be something else, but this is where I would start.
Click to expand...
Click to collapse
Thank you. It's odd because the cell service was working before.
I know in the USA, carriers will sometimes lock the phone to their network, which means you cannot move to another network. So, if you just changed carriers, then that may be why the IMEI is "NG"... unless, of course, we're dealing with a language/translation issue, haha!
I would suggest putting the other SIM back in, and seeing if the "NG" changes. Ideally, if you can use the other carrier for a month, you may try that to see that it works, which would imply that the new SIM is physically bad/defective, or that the phone may be carrier-locked. If it's carrier locked, you may need to contact the "old" company to have them unlock it, so you can move to a different carrier. This is not something the user can do here in the US... the carrier has to do this.