Sir, I can't use 3G services from yesterday though I have an active plan. My phone is Redmi 2 prime and its MIUI V8.5.20. I have reported to network provider (Airtel). They stated that my phone's radio system is not compatible with 3G and so to change my device. I wondered how it is possible as I used 3G and 4G services before. I tried it by dialling*#*#4636#*#* and rebooting the device and changing and resetting the APN and many more. But nothing works. So Sir, What would I do now as I don't want to change my device?? Plz help me.
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Hello guys,
I have a you yureka plus phone which I bought a week ago. I'm facing network problems with it since the time II switched it on. I am not able to get network coverage and therefore very less Internet speed in my home whereas my older phone gets amazing coverage and very high internet speed.
I have contacted the sim card operator and they weren't able to help.
I tried almost all possible ways to get rid of the problem.
I tried the *#*#4636#*#* thing.
I tried changing different apns.
Rooted my phone and tried different custom ROMs and kernals.
So far global ROM miui v8 is the best one as it gives network bars but the internet speed is stilp very low compared to the other phone.
I flashed a different modem file found here in xda but that also didn't work.
I'm out of ideas and I'd really appreciate any help.
Sim cards- jio and tata DoCoMo
Current ROM - global miui v8 based on android 5.1.1
Kernal - velocity v10.3
Thank you.
Hi !
This seems to be a device specific issue , maybe your network doesn`t match the device basebands , try changing them from settings/prefered network type and also get in tuch with your provider about this
Cheers !
i tried all the options in the preferred network type with no success. my provider said there's something wrong with phone's software and he couldn't help with that
minesh melvin said:
i tried all the options in the preferred network type with no success. my provider said there's something wrong with phone's software and he couldn't help with that
Click to expand...
Click to collapse
Are you sure that the phone supports your carriers bands ? You may find that you are only able to get 3g or only have one or two of the bands that your carrier uses
Regards
Sawdoctor
I'm sure it supports 4g, because I get good 4g speed in my workplace. I'm having this problem only in certain areas like my home and college. How do i check the exact bandwidth capabilities of my phone?
I am in a huge problem. I have rooted and installed many custom roms, even for few roms had to install the wifi fix. Now the mobile network is not working properly.. First slot is said to be the one having 4g/3g, but now slot has 3g only. There are no 4g option. Please someone help me with this problem. That also not 3g only. It changes any time to 2g. My online gaming life is is going to hell...
Hi All,
Meanwhile i do have my Hisense A2 for nearly 2 Month. I am a TeleXXX Customer and was having no problems with connectivity for my older Smartphones.
With my Hisense A2 it isnt possible to get a Dataconnection higher than 2G and all without working SMS. WLan is working very well.
So i was searching for Help in the Worl wide web.
I tried the correct APN from my Customer.
I was resetting my Phone.
I upgraded by the English/Chinese Version, and downgraded back to L126.1.6.03.09.00, thanks to Baistan.
Meanwhile i am near lost by find my Failure.
I rooted my MDA Innovation, my S2, my S5, my Ipad...., but my Original Hisense A2 wouldn`t work.......
Is there anything i can do, to get it work correctly? Is there another Thread i havent found?
Are there different Versions of that Phone, or do i have to upgrade the Baseband? (937_GENNS_PACK-1.79261.1.82796.1 (Kernel 3.18.24))
Thanks for Your Patience and, maybe, Help.
LTE and UMTS use different frequency bands and modulation types in different countries.
The A2 was made for the chinese market, and may not work well or at all on 3G/4G in other countries.
I'm kind of in the same boat, I'm using the A2 in Switzerland and can only use 3G but not 4G.
You didn't say which country you're in. Your phone may work with a different operator but I wouldn't bet on it.
tylonman said:
Hi All,
Meanwhile i do have my Hisense A2 for nearly 2 Month. I am a TeleXXX Customer and was having no problems with connectivity for my older Smartphones.
With my Hisense A2 it isnt possible to get a Dataconnection higher than 2G and all without working SMS. WLan is working very well.
So i was searching for Help in the Worl wide web.
I tried the correct APN from my Customer.
I was resetting my Phone.
I upgraded by the English/Chinese Version, and downgraded back to L126.1.6.03.09.00, thanks to Baistan.
Meanwhile i am near lost by find my Failure.
I rooted my MDA Innovation, my S2, my S5, my Ipad...., but my Original Hisense A2 wouldn`t work.......
Is there anything i can do, to get it work correctly? Is there another Thread i havent found?
Are there different Versions of that Phone, or do i have to upgrade the Baseband? (937_GENNS_PACK-1.79261.1.82796.1 (Kernel 3.18.24))
Thanks for Your Patience and, maybe, Help.
Click to expand...
Click to collapse
I have found A2 works on ATT at 4g and 3g but only 2G for T-Mobile in US.
I finally solved the problem i encountred with my mi mix 2s regarding LTE & 4G Bands and connection .
I just flashed a modem.img file extracted from the lasted rom posted on xiaomi.eu
https://xiaomi.eu/community/threads/9-3-28.49842/
i just used this command on fastboot
fastboot flash modem modem.img
After rebooting i got the LTE signal working correctly.
Just give it a try if you have the same problem
Thanks
Which baseband version do you have after that? Which network provider do you use? Thanks!
I have a Mi Mix 2S, M1803D5XA, 8/256GB model, bootloader unlocked, running Global Beta ROM 9.3.28 with baseband version AT4.0c2.6-303-0325_2303_ea9c837. The network operator is Telefonica/O2, the service provider is 1&1. LTE coverage mostly B20/800Mhz, rural area.
After losing 4/LTE connection, my phone does not reconnect automatically with the available 4G/LTE network (B20, 800 MHz). I have to change the default preferred network settings (LTE/TD-SCDMA/UMTS) to "LTE only" or "LTE/CDMA/UMTS (auto) PRL" and only then the phone reconnects to the available 4G/LTE network immediately. Rebooting/restarting the phone also helps to reconnect. So I think I have to restart the modem to trigger a reconnect. If I just put the phone on the windowsill and wait for it to reconnect the modem sometimes seems to "freeze". The phone indicates a 4G/LTE connection (four out of five reception bars), however, there is no internet connection. Again, rebooting/restarting the phone helps.
Also, if the phone has to switch from 4G/LTE to 3G or 2G it does not aggressively try to reconnect with "better" networks. "Upgrading" the connection to a 4G/LTE network takes quite some time.
I wonder why the default preferred network is "LTE/TD-SCDMA/UMTS" anyway because there is no TD-SCDMA network in Europe. I think it should be "LTE/CDMA/UMTS (auto) PRL", again, I don't know whether this is part of the problem or just irrelevant.
I noticed this issue mid-January-ish, I do not know whether it can be linked to the Mi Mix 2S' SAR value issue that was discovered by some French authorities ...
Thanks,
Lars
Being totally frustrated led me to reverting my Mi MIX 2S (M1803D5XA, 8/256GB model) back to the Chinese Beta ROM 9.4.12 yesterday evening, completely wiping the phone and locking the bootloader in the process.
Today, I've tested the "reconnectivity" a few times and surprisingly (?) the phone now works as expected, or at least much better. After completely losing the 4G/LTE connection inside a building (this was also expected) the phone immediately reconnected to the available 2G network and then to the available 4G network upon leaving the building with almost zero lag.
Chinese Beta 9.4.12 comes with baseband version AT4.0.c2.6-303-0409_2210_8fadd5d.
and here is the final solution
Download link in this post
https://xiaomi.eu/community/threads/call-dropping-or-caller-does-not-hear-me-anymore.49296/page-2
Thanks to All
bibo3002 said:
and here is the final solution
Download link in this post
https://xiaomi.eu/community/threads/call-dropping-or-caller-does-not-hear-me-anymore.49296/page-2
Thanks to All
Click to expand...
Click to collapse
sadly this is still not the solution...
futureshock said:
sadly this is still not the solution...
Click to expand...
Click to collapse
Same on my side - yet another updates and still no luck!
The only solution for now is to downgrade ROM to anything from 2018 because problem started in early 2019 ROMs
still not solved...
even some reported that the issue should not be there when using an custom aosp rom... but i had an calldrop/caller didn't hear me anymore today on my test drive with resurrection remix rom! as soon as i use another phone, tested huawei p30pro, galaxy s10+ or even the simple nokia 81104g i havent had an single issue with call dropping on the same route!
it also make me belive that after flashing ah new rom (after ah wipe) it looks like that it is working.. but after a day or a few days the problems start to appear?!
I believe I'm still having this issue whereas in certain areas I'm losing coverage and my phone won't regain services for a very long time. It's predominantly happening at home which is very frustrating. Has anyone found success in resolving this issue? I'm on Verizon and looking for any help possible.
Hi. Im in uk and have f2 pro 5g. I have in settings set prefer network to 5g. 5g is not available where i am at all. My problem is my mobile data (working fine with lots of other phones so not signal related) sometimes just stops working.
I have set to prefer to 4g and still the same. I have updated my apn settings ( not much to change) and done factory reset. I have looked on the dial *#*#4636#*#* and i have phone info 1 and phone info 2. I go to set network type and have a list. Whenever i chose one after reboot it changes back to unknown. (Please see pics)
Any ideas???
Thanks guys.
Hello mate, phenomenally I've just received the phone yesterday. Beautiful phone. However I've come to notice the same issue. Changing over prefer lte or 5g does nothing. The only real fix is switching off data and switching it back on. Never had this issue with all my previous phones, including realme, oneplus and Huawei. It's most probably a software fault. But it's making me want to return it.
Im noticing the following, switching WiFi off when outside doesn't cause the issue but need further testing to confirm.
I read about that bug but I can not confirm it. If you turn on 5G you can only use 1 sim card but 5G is anyways almost useles on this device (only N77/N78)
3 uk is on N78
Linuxkek said:
I read about that bug but I can not confirm it. If you turn on 5G you can only use 1 sim card but 5G is anyways almost useles on this device (only N77/N78)
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Click to collapse
Agree, I live in Puerto Rico and it doesn't even have T-Mobiles band 66 LTE. Incredible that a phone powered by a SD 865 lack of all of these. Software updates are super bad, I haven't got 1 single update and 5G on this phone is useless.