[Q] A question about the M8 Dual SIM - One (M8) Q&A, Help & Troubleshooting

Hey there
I am currently a M7 user but a couple of days ago my phone unforuntately fell flat on its face and the screen got cracked even though I've been taking excellent care of it for over a year and a half now. I am thinking of upgrading to the M8. I currently use two phones, the HTC One and a BlackBerry 9900 which I don't want to use anymore, so I am thinking of the M8 Dual-SIM, but I have a couple of questions:
1) Is there ANY difference between the Dual-SIM and regular M8 besides the extra SIM slot?
2) How does it actually work? Do you receive calls from both and do you choose which one to dial from as you dial a number?
3) I have two network operators, Vodafone and Mobinil. I use Vodafone for Mobile Data and calls, while I use Mobinil for ONLY calls, so will I be able to choose which SIM to use Data from and such?
4) I read that the second SIM is 2G only, meaning its internet is useless and would only be good for making phone calls, so I assume this is where I put the Mobinil one while I put the Vodafone SIM in the #1 slot and it would activate Mobile Data (HSPA because we do not have LTE in Egypt) and work efficiently?
5) Do I receive calls directly from SIM 2 or does it divert calls from 2 to 1?
6) Did anyone ever have problems with Dual-SIM? Like one of the two slots failing or something? I have never had a Dual-SIM phone so this will be a first for me.
Thank you so much.

1. No physical differences. The sim tray is same size on regular M8 as it is on DS version. The DS sim tray just accommodates two nano sims. All accessories meant for the regular model fits the dual simply version. Hardware is obviously somewhat different, mainly the DS version has the second radio hw. Software wise there are differencies regarding the DS capabilities. Also the DS version does not receive so many software updates as the regular. (also there are currently no mod roms for DS)
2. Yes and yes. When you dial a number, you have two dial buttons, one for each sim. Same for text messages.
3, 4. Yes you just insert the Vodafone sim to #1 slot and Mobinil to #2.
5. You receive them directly. While on call with other sim, it is possible to divert calls from other sim to the one that is on the call, so the line is busy or the caller is on hold if you have the feature.
6. This is my second DS phone. Never had any big problems with the feature.
Hit thanks if I've helped.

You've been a great help, thank you so much. I had no idea that the software is different and that's a problem for me, because I am a fan of modded ROMs (ViperOne, Android Revolution HD, InsertCoin, etc.) and so that's a breaking point for me. I already ordered the DS version but I'll see if I can switch it to the regular one. You're sure about the modded ROMs thing right?

TarekElsakka said:
You've been a great help, thank you so much. I had no idea that the software is different and that's a problem for me, because I am a fan of modded ROMs (ViperOne, Android Revolution HD, InsertCoin, etc.) and so that's a breaking point for me. I already ordered the DS version but I'll see if I can switch it to the regular one. You're sure about the modded ROMs thing right?
Click to expand...
Click to collapse
That is the current situation, maybe it will be supported in the future.

Been waiting for ages for the last software upgrade 2.22..... for the dual SIM model.
Almost all the HTC one m8 variants were upgraded several times except the DS. Come on HTC!
Anyone managed to root properly without any problems?

I saw a roadmap here for regular & DS version software updates. DS would not receive 4.4.3, only 4.4.4 and probably later than other variants. I'll post it here if I find it.

So i guess we'll be waiting for a very long time.

http://pocketnow.com/wp-content/uploads/2014/06/htc-update-updates-roadmap.jpg here it is, though it seems outdated. 4.4.4 probably doesn't come out in August even for the regular version.

I went for the regular version and saved myself the pain.
Sent from my HTC One_M8 using XDA Premium 4 mobile app

Related

Can the BA handle 2 phone numbers?

I WAS informed, by a phone dealer, that the BA COULD handle 2 phone numbers.
Orange deny that it can - who's right?
If it CAN'T is there a XDA which can?
TIA
Peter
I don't think 2 phone numbers from 2 sims simultaneously.
But orange have line2 functionality; I'm not sure how to switch, but if a Nokia can use it, I'm sure a PPC can.
Otherwise you have to use a dual sim and switch between them as needed.
V
me looking for it too
hi
i am also looking for it too so i can surf the net on one and make calls on the the other
can some one help me !!
use magic sim
hi guys,
use mafic sim for the same...
u can load upt 16 mobile numberes on it which u can use...
pm me if anyone wanna buy...
i have only 1 new piece in stock...
Magic sims don't work in the UK (and western Europe generally I guess) since we use a more modern encryption system on the SIMS that can't be cracked reliably. If you want a dual sim, use one that hangs outside the phone, or use one that requires you to cut up the sim. I've got one of the latter.
V
vijay555 said:
or use one that requires you to cut up the sim.
Click to expand...
Click to collapse
Vijay, can you tell me where you got yours please?
thanks
magic sim's work wonderful in india!
hi, the magic sims work wonderfully in INDIA but!
So all around enjoy!
I got a dual SIM adapter from eBay.co.uk. Search for "xda dual SIM" & you should see some for sale. I use the "King of double card" adapter & I paid about £10 (inc P&P). You simply switch the phone off & on to switch SIMS (i.e. use flight mode on, then off). I also splashed out £15 for a bit of software that does this ofr me including entering PIN numbers and displaying currently active number inthe today screen

Dual SIM / Multi SIM experiences?

Hi all,
In my previous phone (Nokia 6230) i placed a DualSIM card. Basically meaning that I could place 2 SIM cards in one phone. A menu option was created in the phone that allowed you to switch between the 2 sims without switching the phone on/off. Ideal since I have a business number and private number... I ordered this through mobile.brando.com.hk Attached you can find a description of this tool.
Now I have a Qtek 9100, (SIMlock removed thanks to a brilliant tool found on this forum) but can't get this DualSIM to work. Does anyone have experiences with a similar trick. I hate carrying 2 phones with me all the time, so i would really like to find a dualsim that also work with PDA's / Pocket PC etc. etc.
Any suggestions / remarks?
Many thanks!
I haven't looked at your attachment, but I've used a cut sim, basically the sim where you cut your full size sims into two small ones, and fit those into a "mother sim", and put that in your phone. It's worked fine on my Magician for months. Got it from ebay for about £5. I wrote my own line switcher for use with my Today plugin so I can see what operator I'm on.
Don't buy a sim cloner. If you're in Europe, you're likely to have a modern sim. They can't be cloned yet, as far as I know.
V
Hi V,
Strange because my dualsim is the same, I have cut the golden chips out, but it won't work on the wizard.... Wonder why?
Sounds cool that you can switch using the today screen, i think everybody that knows how to write programs is brilliant... Is this program posted somewhere?
Ciao!
Hello to all! The experience that I have carried out with Simclone to
have been OK! I have a super SIM with 5 numbers and can
change number/operator through the menu of STK.
Through the plugin "dktoday" I can visualize the active operator in that moment (Vodafone, TIM, etc)!
Ciao!
Maarten78: I've never tested my cut/dual sim in anything other then a wizard. But what messages are you getting? I had to carefully "thicken" the cut sim so the contacts all made good contact, but once I'd done that it worked perfectly for months.
My plugin, (VJAudioNotes, evolved into VJEphemeris) has not been released yet. It's written for my specific setup, so I couldn't release it right now for public use. But DKToday is great!
V
Thx guys,
After your comment about thickening the dualsim it seems to work... It only pushes the back cover out a little bit, but i'll find something to solve that i think...
All that i now need is a tool to display on the Today Screen which provider I'm on... Sure i'll find something, i've tried the DKToday but that crashes my phone when i start other programs like explorer or inbox... Strange!
Thx tho, Maarten
I'm wondering about something that is perhaps the opposite of what is being discussed here, which I wonder about by seeing the name "simclone".
If one has more than one GSM phone or device, yet only one GSM phone line, one has to switch the SIM card between devices, in order to switch which phone to use.
It would certainly be convenient to have a clone of the same card, to work on more than one phone. Of course, being the same phone line, both devices would not be used simultaneously. But it would be nice to be able to switch between devices, without swapping the card in and out.
I have heard that this is possible with some European carriers, to get an extra SIM card of the same line, to use in different devices. It isn't possible to do officially anywhere here in the USA however, AFAIK.
So---I'm wondering if it is possible to do this somehow unofficially. How does this simclone program work?
What is this about cutting a SIM card in two? Would this work with US T-Mobile SIM cards?
I've seen these dualsim on sale in a few places, but they stated that they don't work with 3G networks.
Would that include T-Mobile, O2 and Orange :?:
me said:
I'm wondering about something that is perhaps the opposite of what is being discussed here, which I wonder about by seeing the name "simclone".
If one has more than one GSM phone or device, yet only one GSM phone line, one has to switch the SIM card between devices, in order to switch which phone to use.
It would certainly be convenient to have a clone of the same card, to work on more than one phone. Of course, being the same phone line, both devices would not be used simultaneously. But it would be nice to be able to switch between devices, without swapping the card in and out.
I have heard that this is possible with some European carriers, to get an extra SIM card of the same line, to use in different devices. It isn't possible to do officially anywhere here in the USA however, AFAIK.
So---I'm wondering if it is possible to do this somehow unofficially. How does this simclone program work?
What is this about cutting a SIM card in two? Would this work with US T-Mobile SIM cards?
Click to expand...
Click to collapse
Woah! Cutting a SIM in half? As far as my vast intellect spans, I would imagine you would end up.....with....erm.....2 useless halves of a SIM that used to work?!?! :wink:
T-Mobile in the UK offer a Multi-Sim option for business customers of 10 handsets or more - multiple SIMs for same number, voice calls routed to unit of your choice...not sure about SMS Texts though :?

Has anyone experience with DUAL SIM adapter for the TP2?

Hi,
I just bought a TP2 and is very happy about it - it is far better than my old Diamond.
I'm quite tired of having to carry two phones around; my private mobile and my work mobile, so I'm looking at a Dual SIM adapter.
But I first of all want to hear Pros and Cons for using this.
When I google the subject I see a lot of old Posts dated back to 2004 ~ 2007. It's hard to find any up to date review or comments regarding this subject.
So have any of you lads experience, recommendations or even advise against this?
Thanks,
CBW
im interested too! someone pls shed some light
Personally I do carry 2 phones and I have tried dual sim adapters not for TP2 but for diamond1 and pro1 they do work but the performance is not that good.
Cons:
- You can only use 1 sim at a time. So 1 sim will show as switched off even though it is there.
- Some (most) chinese adapter only work with GSM therefore your data conection will be waaaaay SLOOOOOOOOOOOOOOOOOOW.
- It takes time to switch.
Pros:
NONE that i can think of.
Advise:
Peopple just carry 2 phones working at same time both on and both working with 3G ( if your phone is capable and you need data conection)
Buy a dual sim mobile phone (samsung d880,d780) is very good for this
Chinese dual sim phones which are quite good and work perfect.
Problem with dual sim phones is that NONE of them is 3G all of them untill now are GSM. This does not work for me because one of my numbers is on Three UK so i cannot even think of a gsm phone.
Currently using TP2 on voda and SEw995 on Three. and it does the job for me.
Sorry for long post but you might find some info usefull.
I use software called magicall and I believe one of its functions can have a call forwarded to whatever number you want. It may not be exactly what you were looking for but some type of call forwarding might cut down on missing calls when you don't want to carry two phones.
or there is the acer dx900 which is a true dual sim windows mobile phone. i looked at it, but decided against it as the spec was not a huge leap from my old touch cruise. i got the tp2 instead and decided to stay with 2 phones!
Hi,
Thanks for all your posts. I got much wiser regarding this subject. The conclusion is that I will stay with my two phones for now.
Dual SIM adaptor for the TP2 doesn't work as well as either 2 phones or a dual SIM phone such as the MINI IPhone found in China. Funny thing is that a clone manufacturer can make a Dual SIM simultaneous solution. Both SIM cards work simultaneously in the phone but you don't get any advanced software features such as a real WM device >.< . If you want to use a cut-up dual SIM, they are compatible with the TP2.

Dual Sim Adapter

Just wanted to know if anyone knows how android would handle a dual sim setup on the desire and if any adapters have been tested by anyone here?
FeaRThiS said:
Just wanted to know if anyone knows how android would handle a dual sim setup on the desire and if any adapters have been tested by anyone here?
Click to expand...
Click to collapse
I can't believe they stopped allowing two numbers on one sim..... my orange nokia phone back in 1991 had the possibility for two numbers on one sim... was brilliant for one for work and one for personal all through the same phone....
Takes 20 years to bring it back - LOL!
Bandare said:
I can't believe they stopped allowing two numbers on one sim..... my orange nokia phone back in 1991 had the possibility for two numbers on one sim... was brilliant for one for work and one for personal all through the same phone....
Takes 20 years to bring it back - LOL!
Click to expand...
Click to collapse
haha didnt even know they had mobile back in 91
how do dual sim cards work?
It is hard to get much info on dual sim cards from googling. Anyone know if you can use both cards where they switch automatically and you receive calls from either phone number. Can you use the data service from one card while being open to receiving calls on the other card. Or do you manually switch between the cards without having to physically change cards.
Tmobile android is great in most of PDX but useless in some of the outlying burbs. It would help to have prepaid att as a backup number
From prior experience you had to reboot the phone to change SIM card
There are some here but they list them as being untested with the Desire yet.
http://www.simore.ch/en/mobile_phone_accessory/HTC/Desire.html
They do have a video on there if you dig around showing it in use in a Hero and seems pretty good. No need to reboot phone.
Phil
Using these dual sim thingies can I receive a call on either line and pickup or will I only be able to pickup the active line?
-------------------------------------
Sent from my HTC Desire
You cannot use two sim cards simultaneously on the Desire. It has to be only one and to switch by rebooting the phone, because Desire has only one active GSM radio. The phones that operate two sim cards simultaneously have two GSM radios which operate independently from each other.

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...

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