Related
Firstly let me apologize for duplicating the content of several other topics. This post will intend to summarize the issue in order to provide better visibility to anyone trying to help.
To start off, I have the same problem with my Mate 8.
The Issue
The Huawei Mate 8 has two Sim Card Slots: one supports 3g/4g and the other supports only 2g. That's how it's build.
When you pun in non-China Telecom card into *either* of the slots a message pops up saying that 3g/4g is only supported on China Telecom: https://tj6nvw-bn1306.files.1drv.com/y3p0MIG3qgLckpGbYHxgH70oReY058UmP2hfiLYG-HZPelszWa8XkA5gqwtKldaPY54l0lK91_XhjKz149GjRW6H06HJyAdEN7dXS8GzEWZyDvEiUeg7moZtmEGVG3nFj-qqywRCQTzYESnpN5IGyuD7w/Screenshot_2016-01-26-14-08-52%20%281%29.png?psid=1
More Details
It is possible to change the active 3g/4g card slot via settings configuration.
You can use 2g capabilities in *any* of the physical slots (via configuration above)
When you insert 2 sim cards only one of them is active. The device does *not* recognize the second card. It is possible to switch between the two cards, but only one of them can be active.
The problem is reported only for CL00 & TL00 models (and not the AL10 or L29 ones).
What is tried already?
I've tried and confirm all the items above.
Did factory reset.
I've loaded the International Software to Mate 8 from this topics
The Chinese Telecom message no longer appears on the International Software, however the slot still doesn't work.
Did factory reset on the international Software as well.
Tried to unlock it via DC-Unlocker - it is not possible. The "Unlock" button is grayed out.
The Sim Status in DC-Unlocker is "unlocked" however it shows only one IMEI number, where the phone has 2 IMEI numbers if you check it via *#06#
Guys report the same problem with Verizon cards, where Verizon and China Telecom networks are similar.
Thoughts/Suggestions
I talked to the DC Unlocker guys from the support and they advised me it might be from the Firmware. Even I've installed the international one and don't rule out that this might be the root issue of the issue as I don't know the origins of the International software.
Any suggestions?
Update 1: I got feedback from DC Unlocker Support that the phone is most likely "unlocked". Still I'm not convinced that both sim slots are unlocked.
Update 2: Another suggestion from DC Unlocker Support: If device support frequencies (EU) and if they are different from China (they might be) then, yes it should be possible to solve this with correct firmware if such exists. You should check first original specifications of device for china networks, then compare them to network that you want to use it with.
Update 3: Clarification that problem exists only for CL00 & TL00 models (and not the AL10 or L29) (thanks @jbmc83)
u have to add that this is only pertaining to the china telecom locked models CL00 & TL00, and not the AL10 or L29 models
I have AL10 and verizon sim wont work.
Sent from my HUAWEI NXT-AL10 using Tapatalk
is it only verizon or also other carriers?
edit: ah thats a different reason though. both al10 and l29 mate 8 versions are gsm and not cdma based. thats different from the cl00 and tl00 variants being carrier locked to specific network providers...
im betting ur al10 will work just fine with tmobile or att
Sent from my Huawei Mate 8 NXT-AL10 using Tapatalk
Flikera said:
Firstly let me apologize for duplicating the content of several other topics. This post will intend to summarize the issue in order to provide better visibility to anyone trying to help.
To start off, I have the same problem with my Mate 8.
The Issue
The Huawei Mate 8 has two Sim Card Slots: one supports 3g/4g and the other supports only 2g. That's how it's build.
When you pun in non-China Telecom card into *either* of the slots a message pops up saying that 3g/4g is only supported on China Telecom: https://tj6nvw-bn1306.files.1drv.com/y3p0MIG3qgLckpGbYHxgH70oReY058UmP2hfiLYG-HZPelszWa8XkA5gqwtKldaPY54l0lK91_XhjKz149GjRW6H06HJyAdEN7dXS8GzEWZyDvEiUeg7moZtmEGVG3nFj-qqywRCQTzYESnpN5IGyuD7w/Screenshot_2016-01-26-14-08-52%20%281%29.png?psid=1
More Details
It is possible to change the active 3g/4g card slot via settings configuration.
You can use 2g capabilities in *any* of the physical slots (via configuration above)
When you insert 2 sim cards only one of them is active. The device does *not* recognize the second card. It is possible to switch between the two cards, but only one of them can be active.
The problem is reported only for CL00 & TL00 models (and not the AL10 or L29 ones).
What is tried already?
I've tried and confirm all the items above.
Did factory reset.
I've loaded the International Software to Mate 8 from this topics
The Chinese Telecom message no longer appears on the International Software, however the slot still doesn't work.
Did factory reset on the international Software as well.
Tried to unlock it via DC-Unlocker - it is not possible. The "Unlock" button is grayed out.
The Sim Status in DC-Unlocker is "unlocked" however it shows only one IMEI number, where the phone has 2 IMEI numbers if you check it via *#06#
Guys report the same problem with Verizon cards, where Verizon and China Telecom networks are similar.
Thoughts/Suggestions
I talked to the DC Unlocker guys from the support and they advised me it might be from the Firmware. Even I've installed the international one and don't rule out that this might be the root issue of the issue as I don't know the origins of the International software.
Any suggestions?
Update 1: I got feedback from DC Unlocker Support that the phone is most likely "unlocked". Still I'm not convinced that both sim slots are unlocked.
Update 2: Another suggestion from DC Unlocker Support: If device support frequencies (EU) and if they are different from China (they might be) then, yes it should be possible to solve this with correct firmware if such exists. You should check first original specifications of device for china networks, then compare them to network that you want to use it with.
Update 3: Clarification that problem exists only for CL00 & TL00 models (and not the AL10 or L29) (thanks @jbmc83)
Click to expand...
Click to collapse
I can confirm it doesn't have this issue with the NXT-DL00 model on ATT it reads my sim just fine
wricu01 said:
I can confirm it doesn't have this issue with the NXT-DL00 model on ATT it reads my sim just fine
Click to expand...
Click to collapse
I have the DL00 version as well and I was wondering have you tried to load the international ROM or anything else on it. Does it work the same as the AL10
Who can lay oeminfo file from
dev / block / platform / hi_mci.0 / by-name /
of firmware for L29
jjerickson19 said:
I have the DL00 version as well and I was wondering have you tried to load the international ROM or anything else on it. Does it work the same as the AL10
Click to expand...
Click to collapse
Yes, I am currently with the international rom from the link in the original post. Still doesn't work.
off-line said:
Who can lay oeminfo file from
dev / block / platform / hi_mci.0 / by-name /
of firmware for L29
Click to expand...
Click to collapse
For CL00 user, it seems to me that the international(eu) "oeminfo" file is the key for flashing L29 firmware, described as this topic.
Does anyone put "oeminfo" file of L29 anywhere??
Even putting different roms on this phone doesn't change the fact the main aim is locked in CDMA / LTE mode. It's a hardware thing or something these different roms can't edit.
same problem
1st slot 4g 3g 2g snd slot 3g/2g on each mate 8 any version
Me and my friend both bought the mate 9 from the same store. He has the new update but when I try to update it I don't get anything.
Does anyone know what is the issue or how I can officially update my mate 9
He just update his phone from b136 to b138.
Try swapping sim cards between you and him.
Are you both have huawei id registered?
gm007 said:
Try swapping sim cards between you and him.
Are you both have huawei id registered?
Click to expand...
Click to collapse
I'll try the SIM swap don't see why that will make a difference.
Not sure what you mean by id registered! Can u explain more?
onbacardi said:
I'll try the SIM swap don't see why that will make a difference.
Not sure what you mean by id registered! Can u explain more?
Click to expand...
Click to collapse
I mean are you signed on your phone for huawei account?
onbacardi said:
I'll try the SIM swap don't see why that will make a difference.
Click to expand...
Click to collapse
Huawei is known to sometimes restrict upgrade deployment by IMEI and operator so switching SIMs might trigger it.
Alternatively you can use FunkyHuawei.
Sent from my MHA-L29 using XDA Labs
I had to laugh a little, we all bought ours from the same store.
Try without your sim card in it also. Could manually flash with funkyhuawei also.
Not sure why they are limiting the update to imei, it's crap idea from them.
Probably to spread the load on their servers.
Or there are slight component differences.
I can confirm that swapping sim card will instantly detect updates to download since I was in C636B110 before. Even a dead sim card from the region that allows the update will work as well. In my case, I swap my Canadian Rogers sim with a dead HK sim and it detected updates available.
asmok said:
I can confirm that swapping sim card will instantly detect updates to download since I was in C636B110 before. Even a dead sim card from the region that allows the update will work as well. In my case, I swap my Canadian Rogers sim with a dead HK sim and it detected updates available.
Click to expand...
Click to collapse
Good to know....
asmok said:
I can confirm that swapping sim card will instantly detect updates to download since I was in C636B110 before. Even a dead sim card from the region that allows the update will work as well. In my case, I swap my Canadian Rogers sim with a dead HK sim and it detected updates available.
Click to expand...
Click to collapse
That's something I would have never thought. Thank you
gm007 said:
I mean are you signed on your phone for huawei account?
Click to expand...
Click to collapse
I think I tried to but I'm not sure if I have completed the account singin
I was curious as a colleuge of mine recently purchased the OP8 5G from T-Mobile rather than directly from OnePlus. The sim tray only supports one SIM, and I am assuming that as it has been done historically on prior OP devices, the T-Mobile OP software only supports one sim card. I am unsure as to whether the T-Mobile variant has hardware to support two sims or not, but I think it may only a software issue. Would rooting and flashing to get onto the Global firmware enable dual-sim support for a OP8 5G T-Mobile variant?
Thank you,
I'd assume so. I'm planning on trying this myself when my dual sim slot comes in from Shenzhen.
tri_cchan said:
I'd assume so. I'm planning on trying this myself when my dual sim slot comes in from Shenzhen.
Click to expand...
Click to collapse
What is the dual sim's use case for you? International travel or work/personal use?
I think in Asian countries, people often get 1 cheap SIM for cheap voice plan and another SIM for cheap data plan.
iKevin said:
What is the dual sim's use case for you? International travel or work/personal use?
I think in Asian countries, people often get 1 cheap SIM for cheap voice plan and another SIM for cheap data plan.
Click to expand...
Click to collapse
In my colleague's case, for work and personal use. I personally have my OP7 Pro as my work phone, and it is the unlocked non-carrier variant, so the dual sim support is there. However, for my use, too, I would like to have the capability available on my T-Mobile OP8 5G just as my colleague. I had him order a dual-sim tray from eBay, and from a US seller to get the item faster. If it works for him, I'll likely order the dual sim tray.
i dont think the global or eu roms support dual sim. there was a disclaimer under the network & sim settings untill ob1. not sure if ob1 supports dual sim yet
Dual sim works, however, i cant get my Verizon sim to work with t-mobile. I get the CDMA-less notification, i read that you can get it to work, you just got to call verizon to register your imei with them so dual sim can work. This is running open beta, stable 10.5.12 wouldnt see my second sim.
I havent called them because my verizon sim is through work.
esjames said:
Dual sim works, however, i cant get my Verizon sim to work with t-mobile. I get the CDMA-less notification, i read that you can get it to work, you just got to call verizon to register your imei with them so dual sim can work. This is running open beta, stable 10.5.12 wouldnt see my second sim.
I havent called them because my verizon sim is through work.
Click to expand...
Click to collapse
And, this is on a T-Mobile OP8 5G? If so, I wonder if my colleague would have any issues running two T-Mobile SIMs on a global ROM? (I suspect the T-Mobile software doesn't even recognize a second SIM).
SimranSingh said:
And, this is on a T-Mobile OP8 5G? If so, I wonder if my colleague would have any issues running two T-Mobile SIMs on a global ROM? (I suspect the T-Mobile software doesn't even recognize a second SIM).
Click to expand...
Click to collapse
Yes, this is on my t-mobile OP8. I converted to global because I prefer global. I haven't tried two t mobile sim cards, and I haven't tried using t mobiles firmware.
esjames said:
Yes, this is on my t-mobile OP8. I converted to global because I prefer global. I haven't tried two t mobile sim cards, and I haven't tried using t mobiles firmware.
Click to expand...
Click to collapse
So, after receiving the dual sim tray, and inserting two SIM's on T-Mobile's software--it does not even recognize the second SIM. What particular guide did you use to port over to the global firmware? Thanks!
I would also be really interested in knowing how to get the second SIM to read on the T-Mobile IN2017 variant of this phone. I've been tearing my hair out trying to get this to work, now that I've seen that the international models running Android 11 OB2 seem to have functional dual SIM. Personally, I kind of gave up on getting Android 10 to do dual SIM- even with the European ROM (which I'm fairly certain is the only way dual SIM on this device was ever officially supported by OnePlus), I haven't gotten it, but I think I'm annoyingly close. T-Mobile MSM to Global 10.5.12 to Android 11 DP2 will get you non-functional dual SIM- the device will see both SIM cards, and will properly identify them and their phone numbers, but the second SIM won't connect to voice or data, no matter what I do. If I upgrade the device from DP2 to OB2, the dual SIM UI stays (if I go directly from Global to OB2, it doesn't show), but the second SIM slot is still non-functional- no service for voice or data on the second SIM.
For anyone who has gotten a T-Mobile OP8 to properly read two SIM cards, I'd really like to know how- through my hours of messing around with this thing, it always seems like one step forward and two steps back. Hopefully the final release of Android 11 clears this up.
(My two SIMs are from T-Mobile and AT&T, respectively. Unfortunately, I don't think two T-Mobile SIMs has a chance of ever working with this setup on any firmware- "SIM 1" and "SIM 2" share an IMEI. While that's probably okay for SIMs from different carriers, that's not going to fly on the same carrier- it will look like a cloned IMEI to the network, and probably get shut down fairly quickly.)
Has anyone managed to make it work the Oneplus 8 (pro) unlocked USA version with 2 sims at the same time ? Thank you
It's working on mine with second simbtray however there is no service with both inserted. BecUzebitvhas the same IMEI as slot 1
esjames said:
Yes, this is on my t-mobile OP8. I converted to global because I prefer global. I haven't tried two t mobile sim cards, and I haven't tried using t mobiles firmware.
Click to expand...
Click to collapse
I did the same thing to mine but I'm just seeing one imie active and usually it's 2
angelosabatini said:
Has anyone managed to make it work the Oneplus 8 (pro) unlocked USA version with 2 sims at the same time ? Thank you
Click to expand...
Click to collapse
I'd also like to know
Yes I have successfully convert my T-Mobile OnePlus 8 to global ROM and now I have dual sim compatibility.
haseebali55554 said:
Yes I have successfully convert my T-Mobile OnePlus 8 to global ROM and now I have dual sim compatibility.
Click to expand...
Click to collapse
Did you try using 2 sim cards ? Both working fine ? If yes, please share the guide with us. Thanks.
dedsecdz said:
Did you try using 2 sim cards ? Both working fine ? If yes, please share the guide with us. Thanks.
Click to expand...
Click to collapse
1. First of all unlock bootloader and u also have permanent sim unlock from t-mobile.
2.After unlocking your phone will restart, setup your oneplus 8 and enable developer mode and in developer mode enable "usb debugging" .
Note: You must have working adb/fastboot drivers.
3. now restart your phone to bootloader.
4. Download any android 10 fastboot Rom from xda developer.
"I have tested this : https://sourceforge.net/projects/fastbootroms/files/OnePlus 8/10.5.9-EUROPE-OnePlus8Oxygen_15.E.18_OTA_018_all_2007160043_913306-FASTBOOT.zip/download
4.1. For flashing this rom your phone has to be in fastboot mode.
5. After downloading extract the rom and open extracted folder and double click "flah_all.bat
5.1.connect your phone to computer in fastboot mode and enter "Y"
wait for 5 to 7 minutes, in this process your oneplus will restart to recovery mode but never unplug the cable or use your phone during installation.
Note: i have tested dual sim with dual sim tray.
haseebali55554 said:
1. First of all unlock bootloader and u also have permanent sim unlock from t-mobile.
2.After unlocking your phone will restart, setup your oneplus 8 and enable developer mode and in developer mode enable "usb debugging" .
Note: You must have working adb/fastboot drivers.
3. now restart your phone to bootloader.
4. Download any android 10 fastboot Rom from xda developer.
"I have tested this : https://sourceforge.net/projects/fastbootroms/files/OnePlus 8/10.5.9-EUROPE-OnePlus8Oxygen_15.E.18_OTA_018_all_2007160043_913306-FASTBOOT.zip/download
4.1. For flashing this rom your phone has to be in fastboot mode.
5. After downloading extract the rom and open extracted folder and double click "flah_all.bat
5.1.connect your phone to computer in fastboot mode and enter "Y"
wait for 5 to 7 minutes, in this process your oneplus will restart to recovery mode but never unplug the cable or use your phone during installation.
Note: i have tested dual sim with dual sim tray.
Click to expand...
Click to collapse
we dont need to root ?
we dont need to back up modem and persist as well?
aviator.OO7 said:
we dont need to root ?
we dont need to back up modem and persist as well?
Click to expand...
Click to collapse
I haven't face any fingerprint or network signals problem after converting.
haseebali55554 said:
I haven't face any fingerprint or network signals problem after converting.
Click to expand...
Click to collapse
do i need to root to begin with ?
My device is j7elte (running Los 17.1) and using one Sim card named Grameenphone (BD) which is 3g it works well in two sim slots. Recently I buyed a same Gp Sim with support of 4g I inserted this Sim on both Sim slots it detects but says no service . I know first sim slot of my phone supported 4g and 2nd one is 2g I tried to swap Sim cards in different Sim slots first Sim card (which is 3g) it detects and work fine but the new one doesn't work .I tried dialling ussd it says no network available. I clean flashed the ROM again .. Previously I was in an a12l ROM . I changed to Los 17.1 also tried few aosp Roms with clean flash but same result. .. Can anyone help me I'm a newbie. Sorry for bad English. Thanks in advance.
did you but it from bangladesh? those ones usually have problems with 4g sims my banglalink 4g sim also doesnt work.
Ahmed9193 said:
did you but it from bangladesh? those ones usually have problems with 4g sims my banglalink 4g sim also doesnt work
Click to expand...
Click to collapse
Yup . I also tried robi it also doesn't work
Cyanoge1 said:
Yup . I also tried robi it also doesn't work
Click to expand...
Click to collapse
Where do you live, maybe we can meet up?
Sylhet
Well that's unfortunate, I live in dhaka
I guess try the customer care, or a phone repair shop or something
hello guys,
my friend has an issue with poco x3 pro the doesn't read properly a sim card, it works only for data and not for calls ( lte is not forced , did already a factory reset, update firmware, tried custom roms, swapping sim card between slots, same issue always ), the thing is this issue comes only with a specific operator sim card and not for others, ( knowing that this sim card works properly on another phone )
chegue4 said:
hello guys,
my friend has an issue with poco x3 pro the doesn't read properly a sim card, it works only for data and not for calls ( lte is not forced , did already a factory reset, update firmware, tried custom roms, swapping sim card between slots, same issue always ), the thing is this issue comes only with a specific operator sim card and not for others, ( knowing that this sim card works properly on another phone )
Click to expand...
Click to collapse
Ask the specific operator to give a new SIM card for your mobile number.
Sometimes there's issue in old SIM cards.
If it's still not working properly, there's chance with 2G/3G/4G bandwidth issue.
What mobile operator and which country is that specific operator? Maybe someone had same issue you have and can help you.
pl1992aw said:
Ask the specific operator to give a new SIM card for your mobile number.
Sometimes there's issue in old SIM cards.
If it's still not working properly, there's chance with 2G/3G/4G bandwidth issue.
What mobile operator and which country is that specific operator? Maybe someone had same issue you have and can help you.
Click to expand...
Click to collapse
hello, country is algeria, the specific operator is OOREDOO
chegue4 said:
hello guys,
my friend has an issue with poco x3 pro the doesn't read properly a sim card, it works only for data and not for calls ( lte is not forced , did already a factory reset, update firmware, tried custom roms, swapping sim card between slots, same issue always ), the thing is this issue comes only with a specific operator sim card and not for others, ( knowing that this sim card works properly on another phone )
Click to expand...
Click to collapse
Salam
I have the same problem i am from Algéria any solution plz
Ramzito said:
Salam
I have the same problem i am from Algéria any solution plz
Click to expand...
Click to collapse
Bread and Salam to you too, brother. Solution, change operator.