Is it possible to use two SIMs on a single SIM S9+ - Samsung Galaxy S9 Questions & Answers

Evil Samsung does not sell dual sim models in Australia... Is there a way to use two sims in their single sim phones? Was this ever possible with S7 and S8 phones?
I have an international model S7 edge but decided to get an Australian S9+ because they receive better service and support here, well, actually I broke the screen of that S7 edge, again, and the repairing cost by a 3rd party just made it pointless, all because Samsung Australia won't repair it for me (for a more reasonable A$210) for it is an international model (UAE).
If this is technically possible, best case scenario I just need to find a correct SIM tray?

You can use two different SIMs if the phone is not locked to a particular network.
However, if the phone is not Dual SIM, you will not manage to use both cards at the same time.

RossTeagan said:
You can use two different SIMs if the phone is not locked to a particular network.
However, if the phone is not Dual SIM, you will not manage to use both cards at the same time.
Click to expand...
Click to collapse
So you are saying the hardware is there, but the software won't allow me to use both SIMs at the same time?
I take it as flashing dual SIM ROM would not only void warranty, but beats the purpose of buying an authentic local market device in the first place?

sunheatyy said:
So you are saying the hardware is there, but the software won't allow me to use both SIMs at the same time?
I take it as flashing dual SIM ROM would not only void warranty, but beats the purpose of buying an authentic local market device in the first place?
Click to expand...
Click to collapse
No, what I mean is that you can use two SIM by switching them and having only one at a time inserted in the phone.
If the phone is not dual SIM, you can have two SIM cards working on it only if the phone is a Hybrid Dual SIM.
If the phone is SINGLE SIM, you can't do anything about it.
Hope that this answers your question.

Related

MAGICSIM Dual Simcard Adaptor for Galaxy Note and S2 Review

Hi everyone!
This is my review of the MAGICSIM DUAL SIMCARD Adaptor for Samsung Galaxy NOTE (my current Phone) and SAMSUNG Galaxy S2 (Previous Phone).
As someone who has used and currently use the MAGICSIM Dual Sim Adaptor for the Samsung Galaxy Note/Galaxy S2, I think I have enough information/experience to help you all make your purchasing decision.
First of all please note that unlike some other Dual Sim Adaptors, both the CUT and NON-CUT versions of MAGICSIM are 3G Sim card standard compliant. Also be aware that only one sim card slot operates on 3G frequencies (SLOT 1 on NON-CUT VERSION and SLOT 2 on CUT VERSION). The adaptor is controlled using a Dual-Sim STK (Sim Toolkit) application that gets automatically installed on your phone.
IMPORTANT: This is a one Sim Card Active At a Time Device so ONLY ONE SIM CARD WILL BE ACTIVE AT A TIME. You will have to use the application to switch sim cards at desired times or using the auto scheduler in the application. THIS IS NOT A DUAL STANDBY ADAPTOR.
Lets go though each one at a time;
-MAGIC SIM 3G DUAL SIM NON-CUT VERSION 28th GENERATION: I used this for about 3 months. At the outset I can state that this is the most fragile/risky version to use especially if you are someone that likes to root/hack you name it with your phone (like me). My reasons are simple. This adaptor's circuitry is very fragile and once it is placed in the simcard slot make sure that it is folded in such a way that you would never have to refold or rearrange the second sim's tray position behind the battery cover. Messing up with this too often will render the device useless and you will have to simply buy a new one. Furthermore, this adaptor's SimCard 1 Slot is a circuity driven plate that goes into your phone's sim slot (Samsung GNOTE/S2) and your 1st Simcard (3G) is inserted on to the top of the plate. Do not attempt to push both the simcard and plate together into the slot, you might damage the adaptor's plate. Also taking simcard in and out too often causes the plate ending to get damaged together with the circuitry on it. So be warned!
-MAGIC SIM 3G DUAL SIM CUT VERSION 28th GENERATION: This is the version I have recently switched to following serious concerns I had with the NON-CUT VERSION. Whilst at first it may sound really risky to use this version because your simcards have to be cut to a size smaller than the current micro-sim standard, the process itself is very easy and the content of the adaptor package has everything you need to resize your simcards to the correct size. You have two templates included with the adaptor too. TIP: If you don't already have the large size sim card (i.e. only have a micro sim like the one used in IPants or Xperia S or some of the new phones then simply place your simcard into a tray that resizes your sim to a normal size sim and stick the template sticker on the metal side and take the tray out. After tha simply cut your sim card by following the cut lines on the template. Once the cutting is done simply place the simcards into the adaptor trays and slide the cover and insert/place into your device's sim tray/slot. Whilst this option is a delicate option, it is nonetheless the best out there in my opinion because you no longer have to risk permanently damaging your adaptor. Don't forget in addition to templates for cutting/resizing your simcards, you also get two conversion trays to convert your cut sim cards to normal size simcards so that you can use your simcards on another phone that is not compatible with the adaptor or in your emergency use phone in case your Samsung GNOTE/S2 needs to be sent for servicing etc...
WHERE AND WHICH ONE TO BUY? Undoubtedly this is the most important question with there being lots of adaptors on Ebay and through retailers. I would strongly advise that you buy the MAGICSIM 28th Generation Version only and either through your established retailer or directly from: magic-sim.com. I bought my one from here and this is a very reputable, quick and professional seller. They are also listed on Ebay I think. SIMORE is another company that offers such an option but I think this version is the best and cheapest option compared to SIMORE offering. There are cheaper adaptors on sale online but make sure you know what you are buying because one of the sim slots included on this adaptor is fully 3G compliant, which means your 3G simcard will fully function if you want to make use of your data package ( I do!). Lastly on to the question of which MAGICSIM adaptor to buy. I have used both and will STRONGLY RECOMMEND THE CUT VERSION. If you are on this forum there is a greater chance that you are all addicted to playing around with your precious Samsung NOTE/S2 devices and the NON-CUT version is not a reliable long term solution for the reasons stated above. Whereas the CUT VERSION, after the initial cutting process will not affect the way use use/abuse your Samsung GNOTE/S2 as the simcard slot is not tampered/used/abused in any way or shape. Finally to ensure better compatibility (it is not the fault of the MAGICSIM) make sure that your simcard is of one of the modern types as very old type simcards with really big metal parts may not work (if you notice that yours is not working don't panic ask your network/cellular provider to replace your simcard as they will most likely send you a modern version considering the times we live in). Hope you all enjoyed this reading. Take care.
does this mean that you can receive call from 2 different networks at the same time? meaning both cards are active?
jeremy.chan said:
does this mean that you can receive call from 2 different networks at the same time? meaning both cards are active?
Click to expand...
Click to collapse
In response, as stated in my review only one simcard is active at a time. So if you want to receive calls from one simcard whilst using the other, make sure you have call forwarding/call divert enabled on the other simcard so that when one is not active, call from the non active simcard are diverted/forwarded to active simcard. Once again do note that both simcards don't work simultaneously.
I've looked at the web site for these and have been tempted, but your review is well written and helped me decide on the cut version (I was leaning toward uncut). Thanks!
Thanks fore the review! I went ahead and purchased a 28th Gen cut version and it works works brilliantly. I now have my personal and work SIM in my G-Note!
Cheers
StalkS
Very interesting!
3G on only one of the SIMs is sort of the deal-breaker for me, though. I travel to Sweden a lot and would love to keep both SIMs in my phone at the same time so I don't lose either one between countries, and I always buy phones with 850MHz and 2100MHz 3G radios so I can have 3G data everywhere.
On Amazon I found a "HyperCard 3G" (while looking for a Magic SIM) and a reviewer says that they get 3G on both SIMs for that one.
Thanks fore the nice review! i'm gonna try it !
if I understand you can not receive emails from both at the same time?
---------- Post added at 09:14 AM ---------- Previous post was at 09:05 AM ----------
km2783 said:
Very interesting!
3G on only one of the SIMs is sort of the deal-breaker for me, though. I travel to Sweden a lot and would love to keep both SIMs in my phone at the same time so I don't lose either one between countries, and I always buy phones with 850MHz and 2100MHz 3G radios so I can have 3G data everywhere.
On Amazon I found a "HyperCard 3G" (while looking for a Magic SIM) and a reviewer says that they get 3G on both SIMs for that one.
Click to expand...
Click to collapse
did you test it ?
jeremy.chan said:
does this mean that you can receive call from 2 different networks at the same time? meaning both cards are active?
Click to expand...
Click to collapse
thanks
i had a moment of tl;dr there, i must admit
daveettitia said:
did you test it ?
Click to expand...
Click to collapse
I don't have the HyperCard 3G, yet, but plan to get it. I won't be out of the country again until November, but I suppose I can swap my at&t SIM into either slot and see if it picks up 3G/HSDPA when active. Or borrow a friend's iPhone 4/4S SIM.
I can confirm that 3G data does work on either Sim but only on the current active Sim.
Hope this helps.
Anyone had any joy with this and ICS?
Cheers.
Sent from my GT-I9100 using XDA
Interesting..... Video
MagicSIM works perfect on my SGS2 (with GB 2.3.6) but only on the active SIM card. I have put it now also in my SGN (with ICS 4.0.3) - no problem - but you should buy a SGN version, because on the SGN is the SIM slot 90° rotated in comparison to the SGS2 , otherwise you must twist the ribbon cable if you close the battery cover (but it works too)
jscsltd said:
I can confirm that 3G data does work on either Sim but only on the current active Sim.
Hope this helps.
Anyone had any joy with this and ICS?
Cheers.
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Did you have to use the thin metal adaptor door or the normal one for the Note? Nice review
JHimmelbauer said:
but you should buy a SGN version, because on the SGN is the SIM slot 90° rotated in comparison to the SGS2
Click to expand...
Click to collapse
Since you're living in Austria, like me, may I ask you where you've bought the MagicSIM?
Chest3r said:
Since you're living in Austria, like me, may I ask you where you've bought the MagicSIM?
Click to expand...
Click to collapse
directly from www.magic-sim.com - the shipment needs about 10 days.
I'm currently in Florida on vacation, I use here the magicSIM adapter in combination with an A1 SIM and a US prepaid SIM from RedPocket mobile (http://goredpocket.com) - buyed from http://www.prepaidsimcard.org (this place is a little bit expensive - I think to buy at RedPocket directly would be cheeper)
I'm looking forward to that day when both Sim will work at the same time...
Sent by my Android® 4.0.3.
AWFRONT said:
In response, as stated in my review only one simcard is active at a time. So if you want to receive calls from one simcard whilst using the other, make sure you have call forwarding/call divert enabled on the other simcard so that when one is not active, call from the non active simcard are diverted/forwarded to active simcard. Once again do note that both simcards don't work simultaneously.
Click to expand...
Click to collapse
You can receive call on both sim when active sim 2.
If active sim 1, only receive call on sim 1.
If active sim 2, receive call on sim 1 and 2.
kentel said:
You can receive call on both sim when active sim 2.
If active sim 1, only receive call on sim 1.
If active sim 2, receive call on sim 1 and 2.
Click to expand...
Click to collapse
really? Wonder if I had a data only sim as sim 2 and sim 2 was active, would a call to sim 1 ring the phone and I could answer it? I'm interested in trying this.
Can anyone confirm if by removing a MagicSim adaptor has any chance of causing damage to the sim housing on the Galaxy Note?
no - removing is not a problem for the SIM slot
Note_E said:
Can anyone confirm if by removing a MagicSim adaptor has any chance of causing damage to the sim housing on the Galaxy Note?
Click to expand...
Click to collapse

Can I borrow an ESN to activate a Verizon Wireless standard sim?

Like the title says, I want to activate a standard sim, and all my phones either take micro or nano sims.
I want to install a sim adapter in my phone so I can have two sims in a single sim phone, and the second slot is standard sim. Verizon will not send me a sim unless I have a valid IMEI to justify needing it for my phone.
Thanks
Droid_Nut said:
Like the title says, I want to activate a standard sim, and all my phones either take micro or nano sims.
I want to install a sim adapter in my phone so I can have two sims in a single sim phone, and the second slot is standard sim. Verizon will not send me a sim unless I have a valid IMEI to justify needing it for my phone.
Thanks
Click to expand...
Click to collapse
April fools was long ago, or not for awhile, either way.
So you are serious? Good luck. Members here are far too smart to ever contemplate such a thing.
Droid_Nut said:
Like the title says, I want to activate a standard sim, and all my phones either take micro or nano sims.
I want to install a sim adapter in my phone so I can have two sims in a single sim phone, and the second slot is standard sim. Verizon will not send me a sim unless I have a valid IMEI to justify needing it for my phone.
Thanks
Click to expand...
Click to collapse
Negative and dont ask...
Thread Closed.

Does US variant come with dual sim active?

My phone shipped from Amazon today and due Monday. Does anyone know if the US unlocked variant shipp with both sims (nano and eSiM) active? Need dual SIMs for work so hoping it does.
TGUY25 said:
My phone shipped from Amazon today and due Monday. Does anyone know if the US unlocked variant shipp with both sims (nano and eSiM) active? Need dual SIMs for work so hoping it does.
Click to expand...
Click to collapse
I checked Motorola's site earlier today, in the specs section, down in the fine print notes, it states Dual-Sim capabilities will be introduced at a later date & may vary depending on carrier model.
At the minimum, sounds like you may have to wait for a software update to enable Dual-Sim capabilities.
Ordered mine from Motorola yesterday and hoping it comes with dual standby. However, I checked out a T-Mobile version yesterday and although it allowed to hot-swap swap from Nano to eSIM in the software it only had one IMEI number... Hoping the unlocked version maybe different but no software update can alter the missing IMEI. Fingers crossed but honestly not hopeful.
Mine is on the UPS truck for delivery this afternoon (unlocked version bought on Amazon) - earlier than expected so I will be able to report back after I have it. I'd read the info on the motorola website mentioned above and was hoping to get a definitive answer.
I got my unlocked Razr 5G (from Amazon) today. Box only shows 1 IMEI. Pretty sweet device - just working on setup but I can report that 1) both eSIM and the Nano SIM work BUT (and this is a really big BUT), only one can be active at a time. I started with my AT&T nano SIM in the device and it works great. I then switched to the eSIM and added my UK eSIM plan to the phone.
I was then able to go back & forth between the SIMs using the switch SIM menu option and it worked fine but only one can be Active at a time so when AT&T is active, no calls, etc on UK eSIM and vice-versa.
So, while it is technically a dual SIM phone, it does not behave as you would expect (or prefer) for a true dual active-dual sim phone. Given the box only shows 1 IMEI i'm doubtful the phone will ever be dual standby (which would require 2 IMEI's) so I'm not sure if I'll be able to use this as a daily driver or not.
Mine is the US version - nXT2071-3 - hopefully someone in the UK or elsewhere with a different model/firmware can confirm if another version is true dual SIM.
TGUY25 said:
I got my unlocked Razr 5G (from Amazon) today. Box only shows 1 IMEI. Pretty sweet device - just working on setup but I can report that 1) both eSIM and the Nano SIM work BUT (and this is a really big BUT), only one can be active at a time. I started with my AT&T nano SIM in the device and it works great. I then switched to the eSIM and added my UK eSIM plan to the phone.
I was then able to go back & forth between the SIMs using the switch SIM menu option and it worked fine but only one can be Active at a time so when AT&T is active, no calls, etc on UK eSIM and vice-versa.
So, while it is technically a dual SIM phone, it does not behave as you would expect (or prefer) for a true dual active-dual sim phone. Given the box only shows 1 IMEI i'm doubtful the phone will ever be dual standby (which would require 2 IMEI's) so I'm not sure if I'll be able to use this as a daily driver or not.
Mine is the US version - nXT2071-3 - hopefully someone in the UK or elsewhere with a different model/firmware can confirm if another version is true dual SIM.
Click to expand...
Click to collapse
But... i have dual Sim smartphone, and it uses 2 nano-sims. I have them both activated and so the phone shows the two IMEI (from both carrier sims). My previous non chinese smartphone was an iPhone 11 and it had esim and a sim slot. So I used the first e-sim with my Canadian carrier and the sim card slot with my other canadian carrier. I could use both phone numbers on the same device but if one phone number rang on the phone I could not receive an inbound call on the second number.
Is that not how the Razr 5G works?
US variant (XT2071-3) that I got does not work like an iphone 11 (which i what I have now and,like you have one carrier using nano sim and another using eSIM) and both can send/receive calls and text - though like you said not at once- and it can do that because it has 2 unique IMEI and which allows it to register on 2 different networks. Moto XT2071-3 only have 1 IMEI - can only have 1 number on at a time and when one is on, the other is off - doesn't receive calls/texts when off.
EU variant XT2071-4 is supposed to come with 2 IMEI to work like your iphone 11 - both sims can be on and get calls/text. Very few have been shipped. i have one on order and will confirm when i get it. if that one works, i will keep it. The one i got from AMAZON is going to be returned since I can't use it.
I would guess that Dual SIM Dual Standby for 5G is coming with Android 11. It was the case with the OnePlus phones and perhaps that feature isn't available with Android 10. Are there any Dual SIM 5G phones with Android 10? This article helped explain the situation (along with the comments below) Android Authority Dual SIM 5G phones
kingstu said:
I would guess that Dual SIM Dual Standby for 5G is coming with Android 11.
Click to expand...
Click to collapse
Hopefully the wait for 11 isn't too long
I got a UK version XT2071-4 and can report it is a true dual sim phone. Box shows dual SIM’s and I was able to load my US ATT eSIM and my Starhub nano sim on the phone and it works. You can’t use 5G in dual sim mode - probably something about the modem but it works great in 4G LTE with both sims. The global version is missing a few US specific bands though, running on ATT, not missed very much. So far so good. While the build quality isn’t as good (more plastic) I like the smaller form factor over the z-flip and the close to vanilla Android is nice. Happy camper now with full dual sim model - the us model I got from Amazon is going back. Now I just need a decent case...

Question Can I "convert"physical SIM as eSIM on Pixel 6 pro?

Just got the phone. Makes nice photos, so I'd like to make it my primary phone over Xiaomi 11 Pro I had until now. Also, it's a Pixel, so I'm hoping to finally go back to custom ROMs and kernels after a (too) long time of chinese lock-out from such atrocities (as rooting, unlocking and custom ROMs are)
However, I realised that the phone actually only has one SIM slot, not two as advertised in the shop (without looking carefully at the fine print)
Anyway, I have two SIM cards, none from an operator that would be eSIM compatible.
Is it possible to "convert" a physical SIM to an eSIM somehow?
as long as your provider supports esim you can swap
velis74 said:
Just got the phone. Makes nice photos, so I'd like to make it my primary phone over Xiaomi 11 Pro I had until now. Also, it's a Pixel, so I'm hoping to finally go back to custom ROMs and kernels after a (too) long time of chinese lock-out from such atrocities (as rooting, unlocking and custom ROMs are)
However, I realised that the phone actually only has one SIM slot, not two as advertised in the shop (without looking carefully at the fine print)
Anyway, I have two SIM cards, none from an operator that would be eSIM compatible.
Is it possible to "convert" a physical SIM to an eSIM somehow?
Click to expand...
Click to collapse
I am currently using At&t with an esim, and I have Verizon on a physical sim. It works beautifully.
Perhaps I was unclear: I do not have an option of QR code or download of an eSIM. I only have two old-style physical SIM cards. I need one of those converted to eSIM.
Is this possible using some custom tool, some custom ROM maybe supports that or anything like that?
No you cannot. You have to call your cell service provider and ask for an eSIM activation because eSIM uses your IMEI2 instead of IMEI1.
You can't convert a sim to an esim. You have to get an esim from your provider (if they support them) and then they will port your number to the new esim once it is loaded onto your phone. Some can do this pretty much instantly, many like porting on physical sims it can take a few hours, or even a day or so to port across.
Also keep in mind, that many carriers send out the e-sim in physical format (they give you a piece of paper with a QR code to scan), so you will have to wait for a couple days until you can use E-SIM (some carriers allow you to access the QR code in their respective app/website, so keep that in mind and chose accordingly).

Question Single to dual SIM possible?

Is it possible to convert network locked single SIM models to dual SIM?
im not familiar with this, but how does that even work? There's only 1 sim slot on the single sim version, and only 2 on the dual sim version. I guess you might be able to get some sort of modification or adapter board to connect for dual sim, but that would be a bit janky wouldnt it?
PhotonIce said:
im not familiar with this, but how does that even work? There's only 1 sim slot on the single sim version, and only 2 on the dual sim version. I guess you might be able to get some sort of modification or adapter board to connect for dual sim, but that would be a bit janky wouldnt it?
Click to expand...
Click to collapse
It has a single slot in the SIM tray, yes, but I hoping the internal hardware might be the same as a dual SIM model. That might be unrealistic as I can't find a region that offers both dual SIM and NFC. What I do know is that it is possible to convert at least some Oppo models from single to dual SIM by changing the region and flashing other firmware and of course replacing the SIM tray. After that, it works like a bought one.
just sell yours and buy a dual sim model, why go through all this trouble?
it will probably cost the same, if not a little bit more, but it would be a genuine dual sim model.
most dual sim budget phones dont have nfc anyways.
i dont know any other information, so sorry for not being much of a help
Yes the phone is dual Sim variant , just need to buy dual Sim card tray or if inpatient, and a steady hand, just cut the Sim card holder for second Sim out.
Blank tape said:
It has a single slot in the SIM tray, yes, but I hoping the internal hardware might be the same as a dual SIM model. That might be unrealistic as I can't find a region that offers both dual SIM and NFC. What I do know is that it is possible to convert at least some Oppo models from single to dual SIM by changing the region and flashing other firmware and of course replacing the SIM tray. After that, it works like a bought one.
Click to expand...
Click to collapse
The Australia prepaid Optus has both dual Sim and nfc
smiley.raver said:
Yes the phone is dual Sim variant , just need to buy dual Sim card tray or if inpatient, and a steady hand, just cut the Sim card holder for second Sim out.
Click to expand...
Click to collapse
Sorry if this is a dumb question, but why the heck would they cover up a second sim slot if available? Isn't a second sim slot better for their marketing of the device? Wouldn't the device show up as dual sim in the about phone section of settings, despite only having one usabale slot? It doesn't sound like a smart thing to do.
They're also wasting that "precious" in-phone space, not to mention the manufacturing costs to make a dual sim model (which is single sim), only to sell it for the same or less than an actual dual sim model with a usable second sim slot.
Usually what they do is they remove the second slot to make room for the nfc module. That's why you don't often see dual sim phones with nfc in the budget/mid range, it's either one or the other.
Mate, completely agree, but you need to ask mtk/Oppo/realme
The only explanation I can think is, that in Australia, it is extremely rare to be able to buy dual Sim straight off the shelf, usually havego order in(from my experience abut that could also just be Sony phones as well) only my second realme and the C3 that I had before this phone was exactly same
Again, question needs to be asked off manufactures lol
I can only tell you what is and what can be done, as I modified the Sim card tray as stated and put Sim In and there you go.
Wow. I thought that they might disable dual sim since the model is a "single sim" one, despite it having the hardware capabilities.
It is disabled in Australian firmware. That is not surprising for a carrier locked model for obvious reasons but what is somewhat surprising is that the carrier unlocked Australian version which seems to be only sold online direct from realme is also the same model at the same RRP. I think it might be realme's only single SIM model sold in AU. I suspect you might lose NFC if you install dual SIM firmware on it but smiley.raver would know for sure.
I can only speculate that since Australia is a relatively small market it is not worth the effort of manufacturing a special hardware variant for it. OTOH, if that is true that suggests the model might have latent NFC characteristics in other markets which seems a bit of a stretch, so it maybe that it is harder to subtract the 2nd SIM contacts than add NFC. TBH, for such a low power CPU its a bit surprising to see NFC anyway but Optus would only care about the end result for the cheapest cost and maybe the different firmware and modified SIM tray is the cheapest manufacturing option.
As attached. Wish I had some spare tags lying around to show working but screenshot is best J can do lol
What combo of region and firmware are you using or other magic? It's interesting that the firmware you are using has auto-detected either the 2nd SIM or NFC when that combination is not sold in any region.
Blank tape said:
What combo of region and firmware are you using or other magic? It's interesting that the firmware you are using has auto-detected either the 2nd SIM or NFC when that combination is not sold in any region.
Click to expand...
Click to collapse
Also interested in knowing how to use a second Sim. Out of curiosity I modified the Sim tray, but the 2nd Sim was not detected. Android 11, rmx3201AU_11_C.09
If you search the Oppo threads you can find the odd guide on changing the region for example this thread I don't know whether that is sufficient and if its is whether the mix of Australian firmware and different region causes a problem with future updates. I'm lead to believe that changing the region via the process in the linked thread is not possible with Android 11 or at least after some particular update on Android 11. If changing the firmware is required I don't know whether there is a suitable image that will flash itself but there are programs that will do that e.g. mtkclient.
Hopefully, smiley.raver will comes back and provide some more pointers or maybe you will if you're braver and less patient than me.
Good luck!
Blank tape said:
If you search the Oppo threads you can find the odd guide on changing the region for example this thread I don't know whether that is sufficient and if its is whether the mix of Australian firmware and different region causes a problem with future updates. I'm lead to believe that changing the region via the process in the linked thread is not possible with Android 11 or at least after some particular update on Android 11. If changing the firmware is required I don't know whether there is a suitable image that will flash itself but there are programs that will do that e.g. mtkclient.
Hopefully, smiley.raver will comes back and provide some more pointers or maybe you will if you're braver and less patient than me.
Good luck!
Click to expand...
Click to collapse
Just an update, phone automatically updated with rmx3201_11_C.11 but still only detects one Sim.
It won't happen by itself. You need to change the region code and/or install firmware from another region to have the 2nd SIM detected. If you need to rollback to Android 10 so you can change the region code there is a link to a rollback package in the post introducing realme UI 2.0 / Android 11 on the (Indian) realme community site. If you can't find it let me know and I'll have a look later.
Yes you will need to roll back to adtod 10, to change region for firmware, as I said in running Australia Optus prepaid region and I get the updates as well as the dual Sim and nfc(if you need a quick way to test of nfc works use a bank card with a chip on it , turn nfc on and putghw card near the phone, phone will either do nothing or say no process to view the data or something along those lines which means it has recognised a nfc device near it.
I'm not sure I was able to parse that properly. Which region did you change to? Are you saying that you didn't reflash the Optus firmware and continue to receive updates?
Just used the region changing method, selected the Australia Optus prepaid, , phone restarts no data lost.
Done on 2 c21 phones, both have working nfc and 2nd Sim.
I will back up my other 'testing' c21 and try make short video to show it all working,
Region changing in android 11 requires god like access it seems to access that same section, there is probably a way to do it. But just easier to roll back to android 10, change region, reflash you backup, then wipe (this is only if already upgraded to 11, that there is a data loss) mdc, usereata, metadata and then you will be on working android 11, dual Sim, and nfc
I will see if I can find an old sim card, and uploaded short video with both those features working, the 2 c21 phones I have were also brought from different supply chains as well
smiley.raver said:
Just used the region changing method, selected the Australia Optus prepaid
Click to expand...
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Excuse my density, but I would have assumed that would be the region the phone ships with.
I will see if I can find an old sim card, and uploaded short video with both those features working, the 2 c21 phones I have were also brought from different supply chains as well
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Don't do a video just for me. I never watch them, but I wouldn't mind reading your comments on one of the existing guides about any gotchas or steps that can be eliminated. I don't really understand what the software is doing apart from enabling the region change and possibly other codes. Would be good if there was an open source version of the tool.
BTW, according to a post on OzBargain there seem to be 2 versions or perhaps production runs of the Optus C21. The later one has a screen protector applied and there is no carrier lock. Looks like even the one realme sells directly is also (Optus?) locked as their web site changed recently to state they woud supply an unlock code with the phone.

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