Database Develop

Need Help with Z1 32GB SOL23 SIM Unlock GSM Woes

Hello All
So I have been having a ***** of a time trying to get my Japanese Z1 working on Rogers GSM here in Canada.
While it is a CDMA phone it does have all the bands necessary to work on Rogers.
If I insert my SIM it either says Carrier Locked or Perso Locked on the stock 4.2.2 Japanese.
I followed some instructions someone posted here and while it made no difference in the end the initial install of the Generic International FTF (C6903_14.1.G.1.534_1277-2880_R4A) flipped my phone to a North American version which did ask me for a SIM Unlock Code upon boot which would allow me to purchase an unlock code.
Issue is, with that Generic International FTF it makes the 32GB of onboard storage becomes 16GB since the KDDI phone is the only Z1 on the planet that comes with 32GB onboard thus that FTF is only made for 16GB.
Two questions (since I have 4 unlock attempts left) are:
If I put the Generic FTF on, use the code to unlock, and then flash back to the original Japanese ROM I should still be SIM unlocked, correct?
AND
If I left the Generic FTF on, is there any way I can get it to recognize the full 32GB of onboard storage vs it showing my 16GB?
Cheers in advance! :good:

No one has any suggestions or answers?

Udonitron said:
No one has any suggestions or answers?
Click to expand...
Click to collapse
in theory you will face the following
1.- phone might not be sim locked but the fw may lock the phone's usage over any other network which is not the japanese one, this happens on the S3
2.-in theory it should not care about the on board memory asit willrecognize all the available size
just a theory but might help you

alankstiyo said:
in theory you will face the following
1.- phone might not be sim locked but the fw may lock the phone's usage over any other network which is not the japanese one, this happens on the S3
2.-in theory it should not care about the on board memory asit willrecognize all the available size
just a theory but might help you
Click to expand...
Click to collapse
Cheers for the reply.
Well the phone does have an option to choose 5 different methods under Network Mode:
1. Japan LTE/CDMA
2. Japan CDMA
3. Overseas UMTS (WCDMA)
4. Overseas GSM
5. Overseas Auto (GSM/UMTS/LTE)
I have it set to #5 but no dice as I suspect it still is expecting a KDDI SIM still but really it shouldn't.
I have a Sprint HTC One and it auto sets itself to International mode and works on GSM Rogers with no SIM unlock or rooting.
The bit about the onboard memory is totally odd.
After installing the Global FTF it went to 16GB and after reinstalling the modified SOL23 FTF it still showed 16GB.
I had to do a full restore to get it to go back to 32GB

Udonitron said:
Cheers for the reply.
Well the phone does have an option to choose 5 different methods under Network Mode:
1. Japan LTE/CDMA
2. Japan CDMA
3. Overseas UMTS (WCDMA)
4. Overseas GSM
5. Overseas Auto (GSM/UMTS/LTE)
I have it set to #5 but no dice as I suspect it still is expecting a KDDI SIM still but really it shouldn't.
I have a Sprint HTC One and it auto sets itself to International mode and works on GSM Rogers with no SIM unlock or rooting.
The bit about the onboard memory is totally odd.
After installing the Global FTF it went to 16GB and after reinstalling the modified SOL23 FTF it still showed 16GB.
I had to do a full restore to get it to go back to 32GB
Click to expand...
Click to collapse
no more clues tbh, cant help you very much, really sorry

No worries, thanks for trying.
Also worth noting is when I search for Service Providers when set to #5 International Auto I get a list of Available Networks:
Rogers Wireless 3G
TELUS
Bell
Rogers Wireless
When I try either Rogers it tells me "Registering on Rogers Wireless" for about a minute and then says it cannot connect and to make sure a SIM card is inserted.
When the phone is locked it says "SIM locked by operator - No Service" so I assume it is looking for the KDDI SIM and to utilize these available services while travelling since it is set to International Auto.
So my only option is to SIM Unlock it, if these can be?
If I load the Global FTF in and get the SIM Unlock Code Box to pop up I should be able to unlock the SIM and it should be permanent, yeah?
I think the 32GB of memory is actually 2x16GB with the additional 16GB soldered to a second SIM slot thus the Global FTF isn't coded to see that additional amount.

Exynos Note 8 models are (probably) all dual SIM hardware - see pic

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?

Single SIM to dual SIM

Hey guys,
This is sort of an odd question but I thought it would be worth asking anyway.
I recently bought this phone but then realised it's the single SIM variant. At the time of purchase I didn't appreciate there were two versions. I mean, even the manual says you can put a second SIM instead of the memory card.
Anyway as you can imagine this is very annoying because the shop won't take the phone back "just because". So I looked on eBay and I can buy the dual SIM variant SIM tray.
Do you think I can just replace the single SIM tray with the dual SIM tray and use two SIM cards like a champ? I guess the OS wouldn't recognise the second SIM, would it?
I'd be grateful if someone could shed some light on this issue and let me know what my options are (if any).
Cheers

I mean that is impossible, but you can try to ask a question to Nokia support, maybe
Sent from my NOKIA 8 using Tapatalk

I think it's not possible, dual sims are being flashed with a different firmware version from HMD. Let us know.

Differeent rom flashed? Ok but then this must be because of the second imei that got to be written somewhere in a flash partition. Would the Android os-code be really that different?

I think it would not be possible not because of the different firmware or missing imei2 but because of a possibly missing sim2 slot connection
Check attached pictures of the different sim trays attached and an inside view of the sim slot!
Pictures curtesy of stellatech and JerryRigEverything :highfive:

The second IMEI exists!
Trying to type the code *#06# I've found two IMEI number for my TA-1004.
In Settings -> Network menù, there is SIM Cards section
The only test to do is to buy the dual sim tray and check if it works.

beppe88 said:
The second IMEI exists!
Trying to type the code *#06# I've found two IMEI number for my TA-1004.
In Settings -> Network menù, there is SIM Cards section
The only test to do is to buy the dual sim tray and check if it works.
Click to expand...
Click to collapse
OP has single sim TA-1012.....

Note 8 N950F - Convert to dual sim?

Hello,
Am new user of note 8 N950F.
At my last phone, i was using 2 sim cards. Now i see that N950F support only 1 sim card and 1 memory card
Is there any way that i can use 2 sim cards in n950f?
Thank You!

I don't think that is possible for the N950F. As it is designed to as a single SIM device.

Sorry!
Please delete post!

Strange how there's 2 sim toolkits running still.
I'm ok with pie but oreo starting to sound better.
Call recording and dual sim would be nice...

MystaMagoo said:
Strange how there's 2 sim toolkits running still.
I'm ok with pie but oreo starting to sound better.
Call recording and dual sim would be nice...
Click to expand...
Click to collapse
Depending on where your device originates from you may stil have call recording after you hae installed Pie onto your device. I installed Pie onto my N950N and I still have Call Recording on it.

if you device comes with the hybrid simcard tray, you can either use dual sim & no SD Card, or 1 sim and 1 SD Card.
Back on oreo you can buy those adapters to use 2 simcards and 1 SD card simultaneously but on Pie (One UI) samsung decided to block it.. so you can either use Dual Sim & No Sd Card or 1 sim & 1 SD Card.
I hated this.. so i went out to installed a pre-rooted custom rom as close to stock i can find, which the ROM maker edited it to accept the dual sim & 1 sdcard mod. I lost my knox and samsung pay, bt got samsung pay to work on my samsung gear sport instead. dont misunderstand me, spay still doesnt work on the phone but can work on gear sport if you hide the spay related packages via magisk hide.
Secure folders dont work anymore unfortunately. it was my favourite to "hide" apps and a seperate and secure photo gallery..
as for call recording, google decided to kill off 3rd party call recording (yes, google not samsung did it).. BUT since android has native call recording, and is activated via CSC, and having a rom that is pre-rooted, i went ahead and activated call recording.. and enabled camera shutter sound option (to enable the option to switch off camera shutter sound in camera app)
so, if you do not mind loosing knox and knox related features, go get yourself a custom rom. (i personally went for Dr Ketan's ROM)

Thank you!
This sound good because andorid version on my phone is 8.0.0 and smasung experience version is 9.0
Is anyone have experioence whit this adaptors? @BluePhnx
My device is N950F (single sim and signle sd)

Hi,
Is it possible to use 2 sim adaptor on oreo 8.0 ?
Thanks

boka003 said:
Hi,
Is it possible to use 2 sim adaptor on oreo 8.0 ?
Thanks
Click to expand...
Click to collapse
Check out this video out.
Google dual sim adapter for note 8.
You should find more info.

BluePhnx said:
Check out this video out.
Google dual sim adapter for note 8.
You should find more info.
Click to expand...
Click to collapse
But this isn't really dual sim.. U can only use 1sim at a time. Unlike real dual sim with active standby for both sims
Sent from my SM-N950F using Tapatalk

vash_h said:
But this isn't really dual sim.. U can only use 1sim at a time. Unlike real dual sim with active standby for both sims
Click to expand...
Click to collapse
You are right!
Don't think you can truly convert a single sim phone (SM-N950F) into a true dual sim phone (SM-N950F/DS).
Because I think you'll need 2 IMEI's numbers while the SM-N950F has only one IMEI number. So that is probably the only choice is to switch between the sims.
I deleted my first post because that was more for the dual sim phone and not for the single sim phone. Sorry for the confusion on that!
Hopefully someone has figured something out for the single sim phone to use 2 sims at once (1 active and 1 in standby mode)!
Wish the OP luck on figuring this out!

Ohhh, on sime per time. Is same as single sim
I will continue use my single sim note 8

yes, this isn't a dual sim this way. In my opinion is dual sim constantly have 2 number available.
Like the SM-N950FD

Question Dual Sim plus health monitor (ECG, etc) impossible?

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
Click to expand...
Click to collapse
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.