I have a SM-G955N Korean model I bought from eBay. Everything works except Mobile Data. I call ATT (my service) got connected with their Advance Division, and they not did help.
We tried setup a new connect under Access Point Names with no luck. I did notice that more ATT type APNs did add to the list of APNs, I tried each and powered off the phone each time, no luck.
My Wi-Fi works just not the Mobile Data. I typed in the Service Mode code which I got from another thread *#2683662#,(thanks XDA Developers), what I got looks like this:
MAIN MENU
[1] Protocol
[2] UE Setting & Information
[3] ETC
MOBILE: null
MOBILE_IMS: null
When I access The 1,2,3 pages I always get the MOBILE: null and MOBILE_IMS: null at the bottom of every page. My guess these are error codes.
Any help or ideas would be great.
Thank you.
Same here with 955n, null also but I have mobile data running. Lte it says instead of 4g i had on my 955f.
Sent from my SM-G955N using Tapatalk
---------- Post added at 06:34 PM ---------- Previous post was at 06:32 PM ----------
Lte instead of 4ghttp://cloud.tapatalk.com/s/5925d2414e052/Screenshot_20170524-213318.png?
Sent from my SM-G955N using Tapatalk
So yours works, Mobile Data, but you are seeing the MOBILE: null and MOBILE_IMS: null Both or just one?
I read that the seller of a Korean phone has to start it up with a Korean sim card and make a call for 5 minutes or the phone will not work out of their country.
I wonder if this is what happens? No Mobile Data connection.
same for EU phones - if you bought from EU you'd have to 'unlock' it first with an EU sim else it won't work
This guy can help:
Look at this on eBay http://www.ebay.com/itm/322518132661
He switched my S8+ from Tracfone to T-Mobile with all bands working w/ 4G LTE to the point one can't even tell this phone belonged to a different carrier than T-Mobile.
P.S. I had the same issue to where I could connect & surf the Internet with 4G but I was unable to make calls/texts. After he did his magic, which was remotely by the way, my phone got a new life. I bought his service four days ago and my phone is working phenomenally well so far. Give it a try guys.
Does anyone know of a way to unlock the T-Mobile bands on this phone? - the SM-G955N, Can it be done?
There are no clickable options when I access the service menu.
skyprotocol99 said:
Does anyone know of a way to unlock the T-Mobile bands on this phone? - the SM-G955N, Can it be done?
There are no clickable options when I access the service menu.
Click to expand...
Click to collapse
Try Doctorsim
State.of.mind said:
Try Doctorsim
Click to expand...
Click to collapse
Thank you for the recommendation, I'm glad I tried this.
Unfortunately, they DoctorSim was unable to help me as my phone is on the t-moblie network but is not prompting an unlock code.
When I enter this code
*#2683662#
ServiceMode
Not supported
Mobile: null
Mobile_IMS: null
skyprotocol99 said:
Thank you for the recommendation, I'm glad I tried this.
Unfortunately, they DoctorSim was unable to help me as my phone is on the t-moblie network but is not prompting an unlock code.
When I enter this code
*#2683662#
ServiceMode
Not supported
Mobile: null
Mobile_IMS: null
Click to expand...
Click to collapse
No problem. Hmm maybe you will have to do it through T Mobile? I recall that Doctorsim took a long time to work, but it was guaranteed for the phone to be unlocked. Also, did you purchase the premium?
Try
Support.t-mobile.com/docs/DOC-27772
---------- Post added at 03:14 PM ---------- Previous post was at 03:09 PM ----------
On second thought maybe it cannot be done. I pulled this from a previous XDA thread. Source: https://forum.xda-developers.com/galaxy-s8+/help/ive-korean-model-s8-questions-t3590720
"*Since September 2013, Samsung has implemented a 'region lock' on all new stock.
For correct operation, this handset should be activated inside one of these countries with a SIM card issued for use there. The device will then be able to accept SIM cards from outside of these countries.
Activation requires turning the device on for the first time & completing set-up with the SIM installed, then completing at least 5 minutes of voice call(s) with this SIM.
Without activation you may still use the device outside of these countries when 'roaming' - using a SIM card from the listed countries.
If this activation procedure is not followed then the device will lock when first attempted to be used with a SIM card from outside of these regions. Local Samsung support may provide a code to unlock such handsets.
**All member states of the E.E.A and the following additional territories: Albania, Andorra, Bosnia and Herzegovina, Former Yugoslav Republic of Macedonia (F.Y.R.O.M), Monaco, Montenegro, San Marino, Serbia and Vatican City.
From what i understand you might need a sim from Korea to activate it once activated it will work worldwide with any sim card. i could be wrong but that’s how i think it works!"
Another user stated that "Confirmed I had to have my SM-955N unlocked and used in Korea before shipping. Also have the KT logo. Back is actually less busy than other versions without all the FCC, CE etc logos."
Thanks for the help with this!
I am considering mailing the phone to Korea to have someone there do the sim card activation.
But before I do this I want to make sure I understand the lock issue.
The phone does not actually give me a "LOCKED" message, and it partially works T-Mobile, it just does not pickup all the LTE bands, so it only has a connection about 50% of the time. Tmobile recently changed their bands, a month and a half ago it was working perfectly. The main goal is to turn on the locked bands.
If I'm understanding correctly if I take the phone to Korea, use a sim card from there on it, and make calls, then I go back to T-Mobile it will trigger the unlock mesage, which will allow me to access the LTE bands in *#2683662#??
Have you solved this yet?
skyprotocol99 said:
Thanks for the help with this!
I am considering mailing the phone to Korea to have someone there do the sim card activation.
But before I do this I want to make sure I understand the lock issue.
The phone does not actually give me a "LOCKED" message, and it partially works T-Mobile, it just does not pickup all the LTE bands, so it only has a connection about 50% of the time. Tmobile recently changed their bands, a month and a half ago it was working perfectly. The main goal is to turn on the locked bands.
If I'm understanding correctly if I take the phone to Korea, use a sim card from there on it, and make calls, then I go back to T-Mobile it will trigger the unlock mesage, which will allow me to access the LTE bands in *#2683662#??
Click to expand...
Click to collapse
Just curious if you found a solution to this yet?
I read all the posts about how a phone branded and bought in Korea needs to be on a Korean simcard for at least 5 min or so before it will accept any other (non-Korean) simcards.
So since I was based in Korea I bought the S8+ (SM-G955N - 128GB/6GB version) in Korea as soon as it was launched in April 2017 and used it with my Korean telecom provider (KT Telecom) for over half a year. In that period, while travelling outside Korea, roaming on LTE in different countries was never a problem.
Recently, I have moved from Korea (to Europe) and got a local simcard (Vodafone - NL). I can get on my provider's network, receive/send calls/sms, etc. No problem, but no LTE! Only some 3G/Edge!
I tried the 'service menu' with *#2683662#, access is possible but it gave back the same:
ServiceMode
Not supported
Mobile: null
Mobile_IMS: null
So first I thought it was related to KT Telecom how their GiGA LTE technology is somehow dependent on the use of a KT Telecom simcard with the KT Telecom network and basically without the KT Telecom simcard, basic LTE functionality would stop.
So I am reading through the different internet forums and advice from other users, but as far as I can tell, I don't think there is any other solution for me then to flash my phone with a less 'Korean-ized' stock firmware and hope this will resolve my problem.
Since, technically my phone is still under warranty, I am a bit taken back with all the extensive 'liability waivers' and step-by-step instructions. Rooting and flashing my phone is my last resort option.
I am just wondering if there are any other SM-G955N users out there who encountered the same problem and made some progress in any other way. Any feedback or comment is mostly appreciated.
I picked up a Korean G930S that had Chinese CSC, and I put an F ROM onto it. The CSC did not change. Here in the US the Chinese CSC worked just fine on the AT&T service getting 4G/LTE. I flashed an XAA CSC (probably not the correct one now that I think about it), which would not connect up.
I restored the phone back to the F ROM/Chinese CSC setup and don't worry about it at this point.
As I understand so far, what ever phone 'ROM version' you have is the CSC you will need to flash, meaning if you have an F ROM for example,you'd need to flash a CSC package that is 'made' for F ROM's. My 8+ went from an International 8+ 955F to look like and ROM function as a Note 8,so I needed a Note 8 CSC if I cared to have that 'match' more specifically to my local carrier, AT&T.
I can't say that the XAA Note 8 CSC works any better than the original 955F International CSC with AT&T, or not.
For my 8+ F, I flashed a Note 8 ROM, and wanted to find a Note 8 CSC (US) package for the phone, as I wanted the CSC to match where I live.
It wasn't really necessary, as the phone had an F (International unlocked CSC sorta thing stock on it) whick worked just fine here in the US. Never the less, I found the correct Note 8 CSC and set that up correctly with an XAA CSC, and it works just fine, as well.
test
Hodori75 said:
I read all the posts about how a phone branded and bought in Korea needs to be on a Korean simcard for at least 5 min or so before it will accept any other (non-Korean) simcards.
So since I was based in Korea I bought the S8+ (SM-G955N - 128GB/6GB version) in Korea as soon as it was launched in April 2017 and used it with my Korean telecom provider (KT Telecom) for over half a year. In that period, while travelling outside Korea, roaming on LTE in different countries was never a problem.
Recently, I have moved from Korea (to Europe) and got a local simcard (Vodafone - NL). I can get on my provider's network, receive/send calls/sms, etc. No problem, but no LTE! Only some 3G/Edge!
I tried the 'service menu' with *#2683662#, access is possible but it gave back the same:
ServiceMode
Not supported
Mobile: null
Mobile_IMS: null
So first I thought it was related to KT Telecom how their GiGA LTE technology is somehow dependent on the use of a KT Telecom simcard with the KT Telecom network and basically without the KT Telecom simcard, basic LTE functionality would stop.
So I am reading through the different internet forums and advice from other users, but as far as I can tell, I don't think there is any other solution for me then to flash my phone with a less 'Korean-ized' stock firmware and hope this will resolve my problem.
Since, technically my phone is still under warranty, I am a bit taken back with all the extensive 'liability waivers' and step-by-step instructions. Rooting and flashing my phone is my last resort option.
I am just wondering if there are any other SM-G955N users out there who encountered the same problem and made some progress in any other way. Any feedback or comment is mostly appreciated.
Click to expand...
Click to collapse
I have family members visiting from Korea, and they have the same phones. I was trying to set them up with US Mobile which is a T-Mobile's MVNO. So initially, I've faced the same issue as you, where I was only getting the voice calls working and no data. I was able to download an app called Force 4G LTE from the app store that let me change the radio network setting to LTE Only (or other options that include the LTE band). That fixed the data issue and I was getting LTE from that point.
The next problem I ran into, however, was the voice. When LTE is on and working I was no longer getting voice calls (both outbound and inbound). And when I switch it to some non-LTE radio band to turn on the 'Edge' signal back, voice worked again. I chatted with a US Mobile's service representative for a while to try to fix the issue -- in the process also tried turning off HD Voice / VoLTE option -- VoLTE wasn't working for me anyways since I am not using T-mobile's service directly. But that didn't resolve the issue either. After many different tries -- I had to eventually just give up and tell the family member to stick to internet calling for their duration of the visit.
The problem seemed to be that the phone couldn't simultaneously use LTE for data and Edge for voice and was connecting to either LTE or Edge for both.
I'm curious about this as my Korean Note 8 did not need local activation, and with all the research I found Korean models are never SIM or carrier locked and do not require regional SIM activation like the F variants.
As far as using a 935N on tmobile in the USA as long as it supports LTE bands 2,4 and 12 it should work fine. Out of the box my Note 950N worked on LTE and by manually enabling IMS and RCS in the IMS Settings app, VoLTE worked too.
I have since created a CSC patch that changes the CSC to T-mobile to make the phone features more applicable, and add T-mobile's wifi calling but I'm fairly sure the S8+ is basically the same hardware as a Note 8 so if all you need is LTE data and voice calling you shouldn't need to flash anything.
To correct a misinformation about CSC per device, they are not platform specific. My T-mobile patch uses a mostly stock 950U T-mobile CSC base, and I can tell you that there is nothing in the CSCs themselves that has anything to do with Exynos or Snapdragon.
I have the same problem
I have the same problem
Vicious_jm said:
I have a SM-G955N Korean model I bought from eBay. Everything works except Mobile Data. I call ATT (my service) got connected with their Advance Division, and they not did help.
We tried setup a new connect under Access Point Names with no luck. I did notice that more ATT type APNs did add to the list of APNs, I tried each and powered off the phone each time, no luck.
My Wi-Fi works just not the Mobile Data. I typed in the Service Mode code which I got from another thread *#2683662#,(thanks XDA Developers), what I got looks like this:
MAIN MENU
[1] Protocol
[2] UE Setting & Information
[3] ETC
MOBILE: null
MOBILE_IMS: null
When I access The 1,2,3 pages I always get the MOBILE: null and MOBILE_IMS: null at the bottom of every page. My guess these are error codes.
Any help or ideas would be great.
Thank you.
Click to expand...
Click to collapse
Here's some more information about this issue.
https://forum.xda-developers.com/showpost.php?p=81262805&postcount=18
Related
Bought 955FD myself here in saudi.
Followed instructions to make "cumulative 5 minute call" with middle east/north africa sim: regional unlock.
1st issue: wifi calling available?
Searched settings for wifi calling. Initially something pops up, such as an option but it asked for ?phone number? I dont recall, was too excited about getting ready to pop in sprint sim from edge6.
During this search i was waiting for smart switch to execute bringing files from edge6.
When its all done i see nothing about wifi calling on 955FD.
2nd issue: activating 955FD to Sprint network.
Called Sprint, they asked for HEX gave them the IMEI number, then informed phone is not compatible.
They informed me i could go into sprint store and have them flash the device to place it on sprint's system. But that didnt sound confident. The phone is not compatible but can be flashed.
I was told once before by sprint international they have special sims to be used on foreign devices. But after failed activation informed me the international sim would not work either. I am never satisfied with first tier help/information from sprint.
I am open any advice. Last hope is to switch to TMobile which i read in another xda forum it will work. But i am concerned about the wifi calling mainly.
If you're rooted, then flash the CSC selector and select TMB. It will bring you wifi calling and Volte in TMOBILE, Not sure Exynos model will support Sprint CDMA..
I'm using it in Tmobile.. Mine is G955F
Sent from my SM-G955F using Tapatalk
Not rooted. Never tried that before. Trying to stay away from that effort.
Must it be rooted to be used on Tmobile?
2nd issue: activating 955FD to Sprint network.
Called Sprint, they asked for HEX gave them the IMEI number, then informed phone is not compatible.
Click to expand...
Click to collapse
As SBR said above, Exynos does not support CDMA. Sprint is CDMA. Your rep was correct.
rkennison said:
As SBR said above, Exynos does not support CDMA. Sprint is CDMA. Your rep was correct.
Click to expand...
Click to collapse
Thank you. Would them offering to flash the device be worth a try for experimental purpose?
No. The Exynos chip does not support CDMA. That is only in the Qualcom chip. The problem lies in your CPU, not software.
You have two different types of cellular networks, CDMA and GSM. Sprint and Verizon use CDMA while everyone else (in the world) uses GSM.
Kind of just an FYI, in which case your phone will work on T-Mobile, but not sure about the extra steps with WiFi calling (though, if it's on these forums, then you should be set there too).
Will update about wifi calling feature after I speak to Mobile in few weeks upon returning to stattes.
Thanks.
955FD on T-Mobile
After signing up with Tmobile i am 99% all good. Only problem is no wifi calling feature has appeared.
J_blaze114 said:
After signing up with Tmobile i am 99% all good. Only problem is no wifi calling feature has appeared.
Click to expand...
Click to collapse
WiFi calling on TMobile requires the TMobile firmware (which isn't available on the 955FD model, obviously).
Even unlocked US phones from Samsung can't use WiFi calling on TMobile unless they flash TMobile firmware.
You cannot flash the TMobile firmware on your device.
Skander1998 said:
WiFi calling on TMobile requires the TMobile firmware (which isn't available on the 955FD model, obviously).
Even unlocked US phones from Samsung can't use WiFi calling on TMobile unless they flash TMobile firmware.
You cannot flash the TMobile firmware on your device.
Click to expand...
Click to collapse
So my only option is to use DIGITS app by tmobile. Not bad but overall happy with my choice to buy this model...so far.
Hi, I got a Samsung Galaxy J7 Prime off Amazon, problem is that I am currently in the USA & using a T-Mobile USA line, the device is unable to detect the carrier's 4G LTE or 3G Networks, it only picks up 2G (Edge) networks. I have switched sims a few times & toggled the 4G/3G/2G & 3G/2G auto connect options, but nothing seems to work. I was informed that perhaps the device is not compatible with this carrier. Does anyone have any experience with this issue? As I need fast internet on my phone & can't afford to purchase a new phone at this point.
Thank you
According to this Samsung SM-G610F Galaxy J7 Prime TD-LTE Compatibility on T-Mobile (United States) Mobile Network
you should be able to at least access 3g.
I don't know if its possible to change the LTE frequency band on the J7 Prime via Service Mode / Secrets Codes
Something like this Change Network Bands on Any Samsung Phone Without Root
*#0011*#, key input: Q 0000
Then navigate through the menus and look for bands and find t mobile bands
Hi, unfortunately, this didn't work, can you explain a bit more how I should do this?
Thanks.
fullofhell said:
*#0011*#, key input: Q 0000
Then navigate through the menus and look for bands and find t mobile bands
Click to expand...
Click to collapse
If the codes don't work straight away, you'll need to enter Service mode.
How to do this on the J7 Prime?
Sent from my SM-J700F using Tapatalk
chijoks said:
Hi, unfortunately, this didn't work, can you explain a bit more how I should do this?
Thanks.
Click to expand...
Click to collapse
Sorry for the delay, final projects for school are a pain.. I would start trying in a trial and error fashion, any and all dialer codes for your phone. BUT, u must be on stock for any to work. Find a guide and start punching buttons. Once you get into service mode, u will need to locate service bands and switch them to LTE that are within t mobiles service structure. Usually around 800 and up. I hope that helps. And good luck, I tried this for 2 months with a note 4 and couldn't get very far. If it's unlocked, sim and Carrier unlock, it should be easier. Also make sure the imei isn't blacklisted. Swappa allows u to check. All of these things must be done concurrently with the proper band selection. Good luck and just stick with it.i actually got mine switched from a sprint device to a t mobile, but unfortunately the device only works for 2 min increments due to a device financing block the previous owner had still. So it's sitting in my drawer of a smart phone graveyard
If you have root try this app
Phone INFO ★Samsung★ on PlayStore
I bought a LEO-DLXX version off Ebay brand new. I tried two different known good, activated sim cards with the W2 and both say Network Type - Uknown and Service State - Out of Service. One sim is from Mint Sim and the other is Fi. I chatted with Huawei support and per the watch's SN it was made in "United Arab Emirates", he said the bands are probably specific to that region and locked in per HW not SW. Is that true or could I flash it and get it working with another W2 internat rom? Anyone have any knowledge or experience with my issues? Thanks in advance.
Update: Works with Frequency UMTS B2 for AT&T and T-Mobile. Use https://www.cellmapper.net/ to determine if the towers around you use it. My tower used B5 for AT&T and B4 for T-Mobile which are incompatible with the HW2. One town over did work with signal where B2 was transmited. Both Red Pocket AT&T MVNO and AT&T both worked in the HW2 there.
Hi, the Huawei watches come factory unlocked regardless of the region, have you checked the watch hasn't been reported lost or stolen and that's why it isn't working, check the IMEI with checkmend or IMEI.info. If not I would recommend flashing the ROM on XDA, this would take it back to 7.1.1 but you would just update via ota back to Oreo. Thanks.
gazza1888 said:
Hi, the Huawei watches come factory unlocked regardless of the region, have you checked the watch hasn't been reported lost or stolen and that's why it isn't working, check the IMEI with checkmend or IMEI.info. If not I would recommend flashing the ROM on XDA, this would take it back to 7.1.1 but you would just update via ota back to Oreo. Thanks.
Click to expand...
Click to collapse
IMEI is checked good. I tested a friend's AT&T (direct, not MVNO) sim and it worked. SO, I purchased an MVNO with ATT (Red Pocket Mobile) BUT it did not work even after activated and working in other devices. I am thinking now it may not work with MVNO's. Searching to find good directions to edit APN. Already rooted with Magisk via TWRP.
wefwefr said:
IMEI is checked good. I tested a friend's AT&T (direct, not MVNO) sim and it worked. SO, I purchased an MVNO with ATT (Red Pocket Mobile) BUT it did not work even after activated and working in other devices. I am thinking now it may not work with MVNO's. Searching to find good directions to edit APN. Already rooted with Magisk via TWRP.
Click to expand...
Click to collapse
Try to ask whether the MVNO operator supports the watch - maybe they just support whitelisted devices of their own.
I bought unlocked galaxy s21+ on samsung.com . I got the phone and I was so happy and i check everything like screen/benchmark test ... and everything was perfect. I currently live in Korea, and i brought this phone with me since there was no defect at all. I open the my cellular with KT which uses 8(900mhz) and 3(1800mhz) lte bands and the main band is 3
The problem starts here, when i was in U.S, lte+ which is enhanced lte, was working perfect through at&t, but in Korea it wont show lte+ and i did a little research and found out that my Carrier aggregation- CA- is not open? working? whatever its not working. found some ways to use it which was installing a korean s21+ firmware but ofc its not gonna fix the problem cuz U.S is sd888 and Korea is exy2100. SO i found a another way that is using a *#27663368378# but enter that number it says "undefined additional service. Contact customer centre"
damn please help me using LTE+. in living with a speed between 5~30mbps
let me know, how that works out. I have the same phone but in europe. It says lte on my phone but the speed is halved to what i get on other devices.
moksjm said:
I bought unlocked galaxy s21+ on samsung.com . I got the phone and I was so happy and i check everything like screen/benchmark test ... and everything was perfect. I currently live in Korea, and i brought this phone with me since there was no defect at all. I open the my cellular with KT which uses 8(900mhz) and 3(1800mhz) lte bands and the main band is 3
The problem starts here, when i was in U.S, lte+ which is enhanced lte, was working perfect through at&t, but in Korea it wont show lte+ and i did a little research and found out that my Carrier aggregation- CA- is not open? working? whatever its not working. found some ways to use it which was installing a korean s21+ firmware but ofc its not gonna fix the problem cuz U.S is sd888 and Korea is exy2100. SO i found a another way that is using a *#27663368378# but enter that number it says "undefined additional service. Contact customer centre"
damn please help me using LTE+. in living with a speed between 5~30mbps
Click to expand...
Click to collapse
you ever figure anything out?
Hello and hope you guys are well, and I apologize if my post is lacking any info or in any way as I'm still new here.
I have an SM-S908U1 with XAA/XAA CSC code, I hope someone can help me with which CSC should I patch it with to fix poor network issue (poor quality call, poor network signal and barely working LTE/4G).
To give more context, I live in Morocco, my phone used to work fine, I'm not sure what CSC code it has before as I only learned a bit about what CSC is after the research I've done when I had this issue a couple weeks ago.
I travelled to Turkey and used a Turkish SIM card there, it worked fine. I also installed the official January update while I was there.
I came back home on January 23rd, and put back my Moroccan SIM card and noticed the network issues right after, used different SIM cards from different operators, all with the same issue.
I tried all the possible fixes, from resetting network settings to factory resetting my phone, and I even downgraded android to November's security patch version (using ODIN and a ROM for SM-S908U1 XAA) in case the issue was caused by the newest update. None of those worked. I just updated the phone the normal way to January version again.
After a lot of research online, I now think the guy I purchased the phone from maybe patched the phone but whatever he did was overwritten while I was abroad and/or maybe with the software update.
Now I wish someone can point me towards what CSC code should I patch (if any), Morocco's CSC is MWD but it's for SM-S908E with Exynos and I'm worried patching my phone with that one wouldn't work. And I have no idea if any of the other CSC codes for SM-S908U1 would solve the issue or if I have to do something else other than changing CSC.
Thank you for reading all of this even if you have no clue about it, and I'd so appreciate any help pointing me to in the right direction.
You cannot flash Morocco or European CSC on US S22U. However, you can unlock all LTE & 5G bands using the service menu which should help with your connection issues outside US. See this guide.
peacey8 said:
You cannot flash Morocco or European CSC on US S22U. However, you can unlock all LTE & 5G bands using the service menu which should help with your connection issues outside US. See this guide.
Click to expand...
Click to collapse
Thank you very much, that sounds like it would solve my issue, I'm going to try that today and post an update later.
peacey8 said:
You cannot flash Morocco or European CSC on US S22U. However, you can unlock all LTE & 5G bands using the service menu which should help with your connection issues outside US. See this guide.
Click to expand...
Click to collapse
I did all the steps in that guide and unlocked all LTE and 5G bands, I can now see LTE+ (instead of just LTE before) but the network issue is still present, even with LTE+, internet is very slow (slow ping and 1~2Mb/s speed compared to 40Mb/s on other phones in same location), call quality is also still bad, hope you and someone has a clue what might be the problem.
Hi @peacey8, sorry to bug you again. I followed your guide and enabled all bands and still have the poor network issue, when I compared my list of bands to your screenshot, the only thing that is different is that on yours it's showing: CDMA: w HDR, on mine it's CDMA: w/o HDR, I wonder if that could be the reason.
If I go to CDMA band preference to activate With HDR, it says "NOT SUPP".
Thank you in advance and please let me know if you have any ideas.