Develop Bugs

[Q] Huawei Ascend P6 Dual Sim

Hi guys,
I open this thread because I don't really have enough knowledge in mobile phones and gsm networks. The thing is that I would like to buy a huawei ascend p6 dual sim but I am not sure that I can use it in Europe (Belgium). Is anybody here having a P6 dual sim and using it in europe. If not...can you please take a look to this specs and let me know your opinion.
Thank you guys!

Florin.Langa said:
Hi guys,
I open this thread because I don't really have enough knowledge in mobile phones and gsm networks. The thing is that I would like to buy a huawei ascend p6 dual sim but I am not sure that I can use it in Europe (Belgium). Is anybody here having a P6 dual sim and using it in europe. If not...can you please take a look to this specs and let me know your opinion.
Thank you guys!
Click to expand...
Click to collapse
From what i know, dual-sim will only work in China, since at least one sim will work only in TD-SCDMA (not GSM/WCDMA available worldwide)

Florin.Langa said:
Hi guys,
I open this thread because I don't really have enough knowledge in mobile phones and gsm networks. The thing is that I would like to buy a huawei ascend p6 dual sim but I am not sure that I can use it in Europe (Belgium). Is anybody here having a P6 dual sim and using it in europe. If not...can you please take a look to this specs and let me know your opinion.
Thank you guys!
Click to expand...
Click to collapse
Hi Florin,
*
I just bought a Huawei P6 C-00 Dual Sim from China. Just this moment, only one slot work. it is the GSM slot. But the CDMA SIM slot is locked by China Telecom! I still looking for solutions to unlock this slot!
*
So, i think that is only for Chineese people! I am not lucky!

P6 S - U06 known issues

Hi, I am an owner of this very nice smartphone, I'm very happy with it but there are a couple of problems that I'm not able to fix:
- it is sold as a 4G (LTE) phone for the sim card on the main slot and 3G on the second slot, it works only on 3G network for the main slot and 2G for the secon one
- an annoying metallic voice or strange noise when I receive or make a call from/to some numbers with a specific sim card (it's random but always the same numbers, I mean... not all numbers of a specific carrier but only some numbers of that carrier and never, till now, with other carriers).
It occours when that sim card is in the second slot (2G) or in the main slot and I force the 2G network on the main slot.
Did you experience the same problem?

spuntop said:
Hi, I am an owner of this very nice smartphone, I'm very happy with it but there are a couple of problems that I'm not able to fix:
- it is sold as a 4G (LTE) phone for the sim card on the main slot and 3G on the second slot, it works only on 3G network for the main slot and 2G for the secon one
- an annoying metallic voice or strange noise when I receive or make a call from/to some numbers with a specific sim card (it's random but always the same numbers, I mean... not all numbers of a specific carrier but only some numbers of that carrier and never, till now, with other carriers).
It occours when that sim card is in the second slot (2G) or in the main slot and I force the 2G network on the main slot.
Did you experience the same problem?
Click to expand...
Click to collapse
Which ever version of the phone that you get is not able to do 4G or LTE so thats a scam of the carrier and for the noise im not sure what can it be.
Sent from my SM-G850F

Vendor assured me that the phone can go in LTE... I must investigate which frequency use Vodafone in Italy.

spuntop said:
Vendor assured me that the phone can go in LTE... I must investigate which frequency use Vodafone in Italy.
Click to expand...
Click to collapse
And if you can search the web you can see for your self that P6 does not support lte in any way.
Sent from my SM-G850F

P6S does!
I'm talking about it, not P6.
Specs:
Dual Sim Yes, Full Active DSFA
2G GSM 850/900/1800/1900 Mhz
3G WCDMA 850/900/1900/2100 Mhz
4G LTE 900/1800/2100 Mhz
Slot Sim Card Dual Sim W+G/G+G - Micro Sim

spuntop said:
P6S does!
I'm talking about it, not P6.
Specs:
Dual Sim Yes, Full Active DSFA
2G GSM 850/900/1800/1900 Mhz
3G WCDMA 850/900/1900/2100 Mhz
4G LTE 900/1800/2100 Mhz
Slot Sim Card Dual Sim W+G/G+G - Micro Sim
Click to expand...
Click to collapse
You are wrong!
Link to GSM arena:
http://www.gsmarena.com/huawei_ascend_p6_s-5979.php

mojster666 said:
You are wrong!
Link to GSM arena:
http://www.gsmarena.com/huawei_ascend_p6_s-5979.php
Click to expand...
Click to collapse
Thats what I'm trying to explain all the time.
Sent from my SM-G850F

You are probably right and it isn't an LTE device... but for sure the specs on gsmarena are wrong when they say it is a dual sim dual standby.
It is dual active, I can receive calls on the second sim while I'm engaged on the first, hold this and answer on the second and vice versa.
On huawei.ru they say it is 3G, no P6S found on huawei.com.cn

Yes, you are right about dual sim specs. It is definitely dual active.
On GSM Arena are practically all phones dual sim standby. But this is wrong. However, we must admit the fact, that dual sim active phones are very rare.

Dual SIM tray

Hey I see that you can use a dual SIM card tray... Where do you get them from ?
Thank you
Edit I have 5g version if that matters

Update - I have UK on ee 5g pro but SIM tray will only take one SIM it's not double sided.

i bought one from ebay
just search for oneplus 7 pro sim tray

I don't think the 5g model will take 2 sims. (Noticed your 2nd post so you presumably already know this )

I don't know if the 5g is dual SIM how can I find out? It has no settings in UI for a 2nd SIM

Anyone know if the 5g version is dual SIM... Two different people say two different things.
Regards

has anyone checked this out for the 5G version yet? might just order one and try it.

The 5G model can do dual-SIM, but you will lose 5G. You literally would have to flash it do a different firmware to achieve this or hope for someone to create a ROM with the 5G firmware that enables dual-SIM. The hardware is capable of dual-SIM, it's just disabled in the 5G firmware.

eBay: https://www.ebay.com/itm/New-OEM-Du...var=522291973382&_trksid=p2057872.m2749.l2649
Due to arrive in 7 to 10 days.
Update: it works perfectly!

How did you get.it to work

A705FN to A705FN/DS ???

Hello, i have the sam A705FN (non dual sim varient, however other network providers here do have the DS varient)
When i took this phone i assumed i would get th Dual sim varient.
I see on my sim tray i have shouldhve had space for 3 cards (one last slot is blanked out)
Now my question is, if i get a ds varient sim tray will i be able to ise dual sim, even if i need to somehow flash the ds firmware.
And does the fn varient even have the hardware to support dual sim

STiCKxaH said:
Hello, i have the sam A705FN (non dual sim varient, however other network providers here do have the DS varient)
When i took this phone i assumed i would get th Dual sim varient.
I see on my sim tray i have shouldhve had space for 3 cards (one last slot is blanked out)
Now my question is, if i get a ds varient sim tray will i be able to ise dual sim, even if i need to somehow flash the ds firmware.
And does the fn varient even have the hardware to support dual sim
Click to expand...
Click to collapse
all A705FN firmwares are for dual sim , exept on your device the dual sim is greyed out , you can buy a dual sim varient but tell me whats your country and service provider

STiCKxaH said:
Hello, i have the sam A705FN (non dual sim varient, however other network providers here do have the DS varient)
When i took this phone i assumed i would get th Dual sim varient.
I see on my sim tray i have shouldhve had space for 3 cards (one last slot is blanked out)
Now my question is, if i get a ds varient sim tray will i be able to ise dual sim, even if i need to somehow flash the ds firmware.
And does the fn varient even have the hardware to support dual sim
Click to expand...
Click to collapse
I don't think you can use dual sim even if you used the tray form a dual sim model. If the phone only shows 1 IMEI number the device probably only has 1 sim card slot.

Sreedev the bro said:
I don't think you can use dual sim even if you used the tray form a dual sim model. If the phone only shows 1 IMEI number the device probably only has 1 sim card slot.
Click to expand...
Click to collapse
true but you can trick the phone by adding a 2st imei from another phone , also the firmware check of your hardware is compatible , so if it detect a dual sim it could theorically work and the settings would appear again or not be greyed out anymore

BK said:
true but you can trick the phone by adding a 2st imei from another phone , also the firmware check of your hardware is compatible , so if it detect a dual sim it could theorically work and the settings would appear again or not be greyed out anymore
Click to expand...
Click to collapse
How can we be sure that there is a second sim card reader in it?

y.erenbektas said:
How can we be sure that there is a second sim card reader in it?
Click to expand...
Click to collapse
Yeah you can't be sure. My guess would be that it does not have a second sim card reader because it doesn't make sense for a company to make hardware and disable it through software (Even though it could and has happened). Cant be sure until somebody does a teardown comparison.

BK said:
all A705FN firmware are for dual sim , exept on your device the dual sim is greyed out , you can buy a dual sim varient but tell me whats your country and service provider
Click to expand...
Click to collapse
Hey, sorry for only getting back to you now, life has been busy..
but here's what's happened since i last posted.
I have an a70 from MTN-SA (mobile telecommunications network south Africa)
it is a single sim tray.
i used a sim tray from the Samsung galaxy a50 Dual sim variant, with no second sim detected unfortunately.
i wonder if the device has the hardware to support a second sim. If so, i do have an extra IMEI number to use that i got off a cheapo dual sim china phone.

Sreedev the bro said:
Yeah you can't be sure. My guess would be that it does not have a second sim card reader because it doesn't make sense for a company to make hardware and disable it through software (Even though it could and has happened). Cant be sure until somebody does a teardown comparison.
Click to expand...
Click to collapse
i wondered the same thing.. But there is a dual sim variant of this device out in the wild.
My country doesn't allow dual sim (only with 2 specific carriers [cell-c & Telkom Mobile (8ta)])
so it's weird that they would make two separate hardware revisions for the same market?

eSIM on S20+

Hi All,
I just took delivery of the S20+
Mine came with 1 esim, 1 dedicated simcard slot (SIM1)and 1 simcard/sdcard (SIM2) hybrid tray.
went ahead to sign up for esim for the network i use most often.
Now, i have a question. What happens if i factory reset the phone. will the esim "profiles" remain or do i need to drop by the network provider and request another esim activation code?
This is because i have the habit of performing a factory reset on my android phones after a major firmware update, or every 6 months (or if i feel the phone feel sluggish).
Any idea guys? i cant seem to find information on this anywhere. is the esim data stored on the phone data or in the esim itself.

aah.. found it.. if you go to the setting to factory data reset, at the bottom there is a checkbox to select if you want to retain the esim. tick if you do not want to.. and it is unticked by default (keep your esim data)

Apparently the unlocked US version don’t have eSIM?

sprke said:
Apparently the unlocked US version don’t have eSIM?
Click to expand...
Click to collapse
My unlocked S20+ didn't come with a sim card. I used the Verizon sim card from my S9+ in it. Works perfectly. If you go to Verizon and ask for a sim card for your new phone, they charge you like $40 for activation. I paid nothing.

sprke said:
Apparently the unlocked US version don’t have eSIM?
Click to expand...
Click to collapse
U can check it out on your phone settings.
Go to settings - connections - SIM card manager.
If your device has esim, you will see SIM cards section and a Esim section.
I attached how mine looks like. View attachment 4967275
Sent from my SM-G985F using Tapatalk

Is it possible to use 2 sim cards AND an eSIM, thus allowing to have 3 phones lines ?

vash_h said:
U can check it out on your phone settings.
Go to settings - connections - SIM card manager.
If your device has esim, you will see SIM cards section and a Esim section.
I attached how mine looks like.
Click to expand...
Click to collapse
That doesn't show up on my unlocked S20+ 5G US variant

That's pretty neat having both hybrid and esim.
Essentially you could have 1 esim and sim card plus sd card.
I've ordered mine from Vodafone hope it has the same options.

Franzferdinan51 said:
That doesn't show up on my unlocked S20+ 5G US variant
Click to expand...
Click to collapse
Then I guess yours do not come with esim..
Sent from my SM-G985F using Tapatalk

riz157 said:
That's pretty neat having both hybrid and esim.
Essentially you could have 1 esim and sim card plus sd card.
I've ordered mine from Vodafone hope it has the same options.
Click to expand...
Click to collapse
Yes.. Exactly. I love it.
Sent from my SM-G985F using Tapatalk

vodafone UK doesnt support esim on their phones yet (and they didnt sound keen on changing that soon) which is crazy but i think they are afraid people will start using dual networks and they're not happy about that

Glad I bought S20 plus rather then waiting for the ultra version.
More sleek and practical.
Vodafone phones come with esim option also for those who might be wondering.

LAKEPOWELL said:
Is it possible to use 2 sim cards AND an eSIM, thus allowing to have 3 phones lines ?
Click to expand...
Click to collapse
Nope. Only 2. But u can have both sims and registered esim profile in the phone but at any time only 2 can be active.
To be precise only esim and sim1 or sim1 and sim2. Sim2 can't be used together with esim.
Sent from my SM-G985F using Tapatalk

I bought an S20 plus from Samsung and on the box there are two IME numbers. Just one IME is showing in settings. Does this mean it is software disabled? If so I wonder when, and if, the will activate it.

capricrn1232903 said:
I bought an S20 plus from Samsung and on the box there are two IME numbers. Just one IME is showing in settings. Does this mean it is software disabled? If so I wonder when, and if, the will activate it.
Click to expand...
Click to collapse
Will be useful to know which variant of s20+ you have there. Samsung released many variants.
Single sim
Dual sim
Dual sim with esim
This 3 in 4g and 5g.
Mine is 4g dual sim with esim.
Sm-g985f/ds
Sim2 slot shares same imei with esim.
So I'm using sim1, microsd card and an esim.
Imei won't show up on settings unless it's active. As in having a sim card in slot 2 or esim profile on.
If u don't have esim set up you'll only see the add mobile plan option if your phone supports esim.
Sent from my SM-G985F using Tapatalk
View attachment 4981269

vash_h said:
Will be useful to know which variant of s20+ you have there. Samsung released many variants.
Single sim
Dual sim
Dual sim with esim
This 3 in 4g and 5g.
Mine is 4g dual sim with esim.
Sm-g985f/ds
Sim2 slot shares same imei with esim.
So I'm using sim1, microsd card and an esim.
Imei won't show up on settings unless it's active. As in having a sim card in slot 2 or esim profile on.
If u don't have esim set up you'll only see the add mobile plan option if your phone supports esim.
Sent from my SM-G985F using Tapatalk
View attachment 4981269
Click to expand...
Click to collapse
My model number is SM-G986U. It's 5g if that helps It has two IME numbers on the box. It's on the Verizon network.

capricrn1232903 said:
My model number is SM-G986U. It's 5g if that helps It has two IME numbers on the box. It's on the Verizon network.
Click to expand...
Click to collapse
The g986U is American variant with single sim card. It's not the dual sim version im afraid.
Sent from my SM-G985F using Tapatalk

I wonder why it has two IME numbers on the box then. I wonder if it's just software disabled.

capricrn1232903 said:
I wonder why it has two IME numbers on the box then. I wonder if it's just software disabled.
Click to expand...
Click to collapse
It could be for the esim. Try going to settings - connections - sim card manager.
Can you screen shot and share here the page? If your phone has esim support, it would show there.
It should look something like this attachment.
Sent from my SM-G985F using Tapatalk
View attachment 4981367

Esim is what I was be referring to. Apologies if I wasn't clear on that. And no there is no sim card manager. The two IME numbers tell me it is capable of it at least. It's just not turned on