Hi guys, so I got a Mi Max about 2 months ago, and I love the 6.44' display, it's gorgeous.
The only problem is the lack of band supports on T-mobile in the US.
This means I get horrible signals in most buildings and constant signal drop in subways.
I know Mi Mix support band 2 and 4, but it doesn't support band 12. I heard band 12 is one of the major band for indoor reception.
I am wondering how is the signal in buildings on Mi Mix?
Planning to get Mi Mix 2 if it supports at least 2 bands on T-mobile, hopefully, all 3 bands.
I was curious if it was possible to enable frequences not officially supported on the Mi 9. I did a quick search and found quite a bit of enabling additional bands on other phones( lg, samsung, moto) but see nothing for xiaomi and more specifically mi 9. I was hoping to enable band 71 600mhz for T-mobile USA. Has anyone attempted to turn on other LTE bands and was sucessful? Thanks!
https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
https://www.androidauthority.com/activate-4g-lte-868847/
https://www.**************/how-to-enable-all-disabled-lg-g4-lte-4g-hsdpa-bands/
sushi143 said:
I was curious if it was possible to enable frequences not officially supported on the Mi 9. I did a quick search and found quite a bit of enabling additional bands on other phones( lg, samsung, moto) but see nothing for xiaomi and more specifically mi 9. I was hoping to enable band 71 600mhz for T-mobile USA. Has anyone attempted to turn on other LTE bands and was sucessful? Thanks!
https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
https://www.androidauthority.com/activate-4g-lte-868847/
https://www.**************/how-to-enable-all-disabled-lg-g4-lte-4g-hsdpa-bands/
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i dont think u can enable other bands because global an chinese model dont have the same modem
Mi 9 uses SD855 and the difference in just between the locked and unlocked band! i have a Chinese Mi 9 and i could successfully unlock CA on B3 badB7 but it was unstable in changing between H+ and 4G+
https://forum.xda-developers.com/Mi-9/how-to/enable-4g-4-5g-carrier-aggregation-mi9-t3977213
Hi everyone. Hope someone can help, I have a redmi k20pro and cannot seem to get a 4G data signal. I put my wife's o2 sim into the phone and it gets 4G straight away, then when I put my sim back in it gets 4G for awhile then dissapears again. Can anyone maybe help or know what may be wrong ? Thanks in advance
Find out what LTE band the use
Sent from my Redmi K20 Pro using Tapatalk
ishaqtkr said:
Find out what LTE band the use
Sent from my Redmi K20 Pro using Tapatalk
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800mhz and 2600mhz seemingly ?
Then that's the problem, K20 Pro doesn't have the important LTE bands for Europe especially B20 and B28, Perhaps O2 have a band which K20 Pro has. You were better buying Mi 9T pro and not K20 pro which has the European bands
Sent from my Redmi K20 Pro using Tapatalk
ishaqtkr said:
Then that's the problem, K20 Pro doesn't have the important LTE bands for Europe especially B20 and B28, Perhaps O2 have a band which K20 Pro has. You were better buying Mi 9T pro and not K20 pro which has the European bands
Sent from my Redmi K20 Pro using Tapatalk
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I can manually go in and select Vodafone 4G UK and it works then will eventually revert back to H+
Then maybe the signal is weak?
Sent from my Redmi K20 Pro using Tapatalk
EE is your best bet, all bands are covered in the K20 Pro.
Vodafone and 3 should be OK, they both use B20, which is missing, but they both also use other bands extensively too. It does sound like you're unlucky and in a weak signal area.
O2 will give worst coverage, as they used to only use B20. They've added other bands in major towns and cities so will get some coverage now, but you'll not get 4G once you go semi-rural and beyond.
Can confirm EE works really well, I get 4g pretty much everywhere, Voda uses band 20 so for sure you will have issues
this is because Vodafone UK mostly relies on Band 20 which the K20 Pro does not support. For the best 4G reception go with EE as they mainly use B3 and B7
Hello Xiaomi community, I am using my Mi 11 ultra(Chinese - yet to flash EU rom) on T-mobile in US. I have a oneplus 8T as well which is connected to the same network. When I test these two mobiles, which are connected to HSDPA right next to each other, I get 40mbps download speeds on Oneplus 8t but only 10mbps on mi 11 ultra. Is mi 11 ultra or MiUi limiting the network bandwidth? Are there any settings that I can adjust to see the same speeds? Both seem to be connected on Band 2. Appreciate any help with this. @olkitu, please comment.
lalith said:
Hello Xiaomi community, I am using my Mi 11 ultra(Chinese - yet to flash EU rom) on T-mobile in US. I have a oneplus 8T as well which is connected to the same network. When I test these two mobiles, which are connected to HSDPA right next to each other, I get 40mbps download speeds on Oneplus 8t but only 10mbps on mi 11 ultra. Is mi 11 ultra or MiUi limiting the network bandwidth? Are there any settings that I can adjust to see the same speeds? Both seem to be connected on Band 2. Appreciate any help with this. @olkitu, please comment.
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*#*#4636#*#*
avetny said:
*#*#4636#*#*
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Thank you for the info @avetny . I have checked both the mobiles and here is what I see. Oneplus 8t mostly connected to LTE, and Mi 11 ultra switching between EDGE, HSPA and if I force the setting to NR/LTE only, it shows LTE but can't browse anything and no data connection at all. Am I missing something? Also am sitting right next to the TMobile 4g LTE personal cell booster box with both these mobiles
This is when mi 11 on EDGE n/w
This is when mi 11 on LTE (with 20mbps download speed)
This is oneplus 8t mostly connected to LTE with 60 to 100mbps download speeds
Restart device
When I get into that menu and I change the network type the setting doesn't stick,why?
avetny said:
Restart device
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Tried with various settings few times. Am not sure why the connection stability is low and always switching from EDGE to HSPA to LTE where as oneplus rarely shows me HSDPA. I have a 4G LTE T mobile cell spot sitting right next to me.
In terms of the modem Mi 11 ultra has X60 where as oneplus 8t has X55
Check again settings.
Make sure 5G is preferred.
Make sure 5G Smart Switch is off.
This make help too: 5G battery saver is off.
lalith said:
Hello Xiaomi community, I am using my Mi 11 ultra(Chinese - yet to flash EU rom) on T-mobile in US. I have a oneplus 8T as well which is connected to the same network. When I test these two mobiles, which are connected to HSDPA right next to each other, I get 40mbps download speeds on Oneplus 8t but only 10mbps on mi 11 ultra. Is mi 11 ultra or MiUi limiting the network bandwidth? Are there any settings that I can adjust to see the same speeds? Both seem to be connected on Band 2. Appreciate any help with this. @olkitu, please comment.
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Click to collapse
Well Xiaomi do not support Carrier Aggregation combinations and 5G used in US. Maybe SA only n41 could work but it's by default disabled outside from China.
OnePlus 8T is US model? You should buy device from your own region to avoid issues. As you know you can check on https://cacombos.com website supported bands and carrier aggregation combinations of devices. Make sure it support Carrier Aggregation combinations your carrier use on your area.
olkitu said:
Well Xiaomi do not support Carrier Aggregation combinations and 5G used in US. Maybe SA only n41 could work but it's by default disabled outside from China.
OnePlus 8T is US model? You should buy device from your own region to avoid issues. As you know you can check on https://cacombos.com website supported bands and carrier aggregation combinations of devices. Make sure it support Carrier Aggregation combinations your carrier use on your area.
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Thank you for the response, would flashing a Global ROM gets me all the Band combos? I understand changing the ROM is not going to get me the missing Band 66 from Chinese version phone, but atleast wondering if I flash, the combos listed on Global version would follow? or ROM flashing will not change any Combos? Thank you.
lalith said:
Thank you for the response, would flashing a Global ROM gets me all the Band combos? I understand changing the ROM is not going to get me the missing Band 66 from Chinese version phone, but atleast wondering if I flash, the combos listed on Global version would follow? or ROM flashing will not change any Combos? Thank you.
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Try the global or Eu ROM
The China one is full of headaches outside china
speedtripler said:
Try the global or Eu ROM
The China one is full of headaches outside china
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Am trying NetMonster to see which cell tower and band(s) its connecting and if its using any combo bands. Typically the combo shows up like - (4G. LTE 1900+ AWS-A). I have not seen a combo so far on this with the Chinese ROM, but not sure if Global/EU ROM makes any difference. Unless the Global/EU ROM deals with Band Combos. Am yet to boot unlock, so could not do a quick try.
Were you able to get better speeds or use NetMonster to see Combo bands with Non Chinese ROM?
lalith said:
Am trying NetMonster to see which cell tower and band(s) its connecting and if its using any combo bands. Typically the combo shows up like - (4G. LTE 1900+ AWS-A). I have not seen a combo so far on this with the Chinese ROM, but not sure if Global/EU ROM makes any difference. Unless the Global/EU ROM deals with Band Combos. Am yet to boot unlock, so could not do a quick try.
Were you able to get better speeds or use NetMonster to see Combo bands with Non Chinese ROM?
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I had great speeds on every ROM but In my city they only use band 78 for 5G and I get about 250-300mb even without line of sight of the antenna, even I'm a restaurant or a mall it's that fast
i haven't been able to spot a 5G tower yet so I can test one in direct line of sight of it but I've read you can get about 700mb/s
speedtripler said:
I had great speeds on every ROM but In my city they only use band 78 for 5G and I get about 250-300mb even without line of sight of the antenna, even I'm a restaurant or a mall it's that fast
i haven't been able to spot a 5G tower yet so I can test one in direct line of sight of it but I've read you can get about 700mb/s
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Wow, that's crazy speed. Never heard of those kind of speeds in US. I wish the phone manufacturers just let the users decide what bands they want to enable in their region if the phone is high-end latest and greatest
Not always but here in london at my place i get 500+Mbps
Hello , i need to unlock bands 2 and 4 for my Xiami Note 10 Pro Max? is that possible? Cannot use 4G on my current ISP.