Need pro xda help - Xiaomi Mi Max 3 Questions & Answers

Hello it's turbo again.
In my area we continue to lose band 4 in the past 6 months ....to now my mi max 3 will often not let me speak on a call. ... When I answer or dial.
.. I'm at wits end I bought a Moto g7. To make calls do to looking for work. But I don't like it but I cant be missing calls.... To get the mimax3 back I can only guess maybe more bands will save my mi max3.
Can anybody unlock more bands for me. If I pay shipping and for your time and knowledge.

Come on some one has to know how to add bands to the mi max 3
Please help

Hi,
I think the Telecom band is associated with hardware, not software.
For example, you can check post on forums the Redmi K20 Pro.
https://forum.xda-developers.com/k20-pro/help/k20-pro-nz-t3944809
Good luck.

Related

[Q] US compatibility?

Hello all. I am wondering about US compatibility for the Xiaomi Redmi 1s. Is there anything you have to do to get it to pick up US radios? I'm asking in reference to my new Redmi 2. There's no forum for it so I thought it may be similar to the 1s in this regard. The status bar signal indicator shows an X over the bars. Weather there's a SIM in it or not. So I wouldn't even be able to make emergency calls. Trying to use it on AT&T here in the US. Any ideas? And yes, I've got the proper APN settings.
There is Forum on MiUi forums (Actually garbage with lots of useless threads)
But i doubt your thread will be seen by someone ! Lots of spam in there
drakepayton said:
Hello all. I am wondering about US compatibility for the Xiaomi Redmi 1s. Is there anything you have to do to get it to pick up US radios? I'm asking in reference to my new Redmi 2. There's no forum for it so I thought it may be similar to the 1s in this regard. The status bar signal indicator shows an X over the bars. Weather there's a SIM in it or not. So I wouldn't even be able to make emergency calls. Trying to use it on AT&T here in the US. Any ideas? And yes, I've got the proper APN settings.
Click to expand...
Click to collapse
Afaik, 1S isn't compatible with US cellular frequency.
But, according to GSM Arena, Redmi 2 should've compatible with AT&T frequency. Maybe you can ask on Redmi 2 forum at MIUI English Forum.

LTE+ support to make 3CA work on Bands 3+5+40??

MI has done an awesome job in bringing a phone without USB-C to not use QC v4.0, also its mind-blowing X12 modem supporting LTE speeds of 600Mbps only if 3CA is enabled.
In India due to Jio's entry, airtel also has raced against them. Atleast in major cities, LTE+ is already enabled but Indians hardly have phones that support such lovely speeds! In RN4 (mido) people reported unlocking bands through QXDM never worked!
So., How to enable LTE+ in RN5Pro supporting 3CA and RN5 supporting 2CA..?
Well I can't speak for the Redmi series but my Mi 5 had shown me 4G+ (2x carrier aggregation) sometimes when I was traveling abroad, but since the RN4 never really supported CA there is a chance that it'll be spared for the higher end models again. It remains to be seen if Xiaomi activates it. But you surely can't activate it by yourself.
I think OEMs add some sh*t un used C.A band combinations and advertise as 4g+. Just want to know what network C.A combination Xiaomi added to this Redmi note 5 pro to market it as 4G+?. I always gets response from some moto idoits- "2018 randi nude has no C.A support". I need something to support this. ? Please anyone give me RFNV information of what bands C.A combinations this device supports....so users can edit that for possible network combinations in their country. Technically everything inside is excellent for value, but missing C.A in 2018 annoys much. Tmrw I will try to buy one in flash sale. OEMs market as 4g+ just by adding some unusable combinations, so this RFNV information helps me. If it supports any odd bands then I can edit to combination I need. If it's C.A is antenna restricted block then I can't do any edit workaround. Help me think on this before buying, still I don't care of C.A benfits bcz here in India it's total congestion bcz of ultra cheap plans..so technically it makes no difference , just bcz its 2018 buy I do care a little.. I see nothing on this RN5pro C.A band related 4g+ support....any rooted user plz check it's RFNV information.
pranavateja99 said:
I think OEMs add some sh*t un used C.A band combinations and advertise as 4g+. Just want to know what network C.A combination Xiaomi added to this Redmi note 5 pro to market it as 4G+[emoji16]. I always gets response from some moto idoits- "2018 randi nude has no C.A support". I need something to support this. [emoji39] Please anyone give me RFNV information of what bands C.A combinations this device supports....so users can edit that for possible network combinations in their country. Technically everything inside is excellent for value, but missing C.A in 2018 annoys much. Tmrw I will try to buy one in flash sale. OEMs market as 4g+ just by adding some unusable combinations, so this RFNV information helps me. If it supports any odd bands then I can edit to combination I need. If it's C.A is antenna restricted block then I can't do any edit workaround. Help me think on this before buying, still I don't care of C.A benfits bcz here in India it's total congestion bcz of ultra cheap plans..so technically it makes no difference , just bcz its 2018 buy I do care a little.. I see nothing on this RN5pro C.A band related 4g+ support....any rooted user plz check it's RFNV information.
Click to expand...
Click to collapse
How do I check RFNV Information?
Sent from my Redmi Note 5 Pro using Tapatalk
vedantdude said:
How do I check RFNV Information?
Click to expand...
Click to collapse
Refer:
http://en.miui.com/thread-242834-1-1.html
https://forum.xda-developers.com/lenovo-p2/how-to/enabled-4g-ca-p2-t3707584
https://www.smartphones.how/repair/how-to-enable-qualcomm-diagnostic-mode
For redmi note 5 pro diagnostics mode- try
I've tried all this steps in my Redmi Note 4 and it simply doesn't work. Once RFNV is modified phone starts showing LTE+ but does not latch to SC secondary band at all. Highlighted error is what I get in diagnostic log (as attached) and I'm pretty sure even in Note5Pro it'll be the same. Hence don't buy Redmi Mid range you are looking to escape carrier congestion.
This thread is similar to this one and with more interesting findings https://forum.xda-developers.com/re...g-usb-diag-mode-add-lte-t3794695/post76606752

Lte Frequency change

someone know how to change lte frequency on ZenFone 5 (ZE620KL) ?
Chehas said:
someone know how to change lte frequency on ZenFone 5 (ZE620KL) ?
Click to expand...
Click to collapse
Which version of the phone do you have? Which Band are you missing?
I also have the same requirement. I've got the same ZenFone 5 (ZE620KL) which I think is from the Taiwan market. I need 800MHz (Band 20) activating as it's the most commonly used LTE band in the UK. I also need 2600MHz (Band 7) for my network but this is working on the device already. Is it even possible to get a missing band working on a device?
Anyone know the answer to this?
You can give this a try: [GUIDE] Add all GSM and LTE bands to your phone
That guide seems very complicated and is now 4 years old. Do you guys think the method still works? And are custom kernels already available? For now I'm kinda getting used to the missing Band 20 but the three Carriers in Germany said that they are shutting down 3G 2020/21.
So I would be glad if some experienced user could try if the tools work with the Asus ZF5 cause missing LTE support could become a problem rather sooner than later :/
dmax92 said:
That guide seems very complicated and is now 4 years old. Do you guys think the method still works? And are custom kernels already available? For now I'm kinda getting used to the missing Band 20 but the three Carriers in Germany said that they are shutting down 3G 2020/21.
So I would be glad if some experienced user could try if the tools work with the Asus ZF5 cause missing LTE support could become a problem rather sooner than later :/
Click to expand...
Click to collapse
Well, I'm not sure, I haven't tried that. There are thousands of guides for different phones here on xda. I'm sure somehow it can be done with this device as well.
Hope someone with experience and the phone can try it. For now I'm good with the missing Band 20 but in 2020/21 the major carriers here in Germany will shut down their 3G services. So missing LTE frequencies could turn out to be a real problem Rather sooner than later :/
Why Asus released their Zenfone 5 Models with different LTE support while the 5Z supports all important ones is beyond me...
Could a custom ROM with Kernel correct the missing Bands ?
thanks guys , but i sold my phone for the galaxy s9 and no any problems lol

Question US carriers that will support POCO F3 or RealMe GT 5G

Hey Everyone,
Currently have a Xiaomi Redmi Note 5 on AT&T, but recently got the notification that AT&T is shutting down their 3G network and my phone will not be usable. Looking at switching to another carrier/MVNO and was considering between the POCO F3 and RealMe GT 5G.
Can anyone recommend carriers/MVNOs where these phones would possibly work on. I know frequency checker/Kimovil provide the compatible bands. But considering both phones don't have Band 71, I just wanted to check if anyone has been able to use these phones on US carriers and if so how did you go about getting the phones activated with the carriers.
Thanks
Rankone21 said:
Hey Everyone,
Currently have a Xiaomi Redmi Note 5 on AT&T, but recently got the notification that AT&T is shutting down their 3G network and my phone will not be usable. Looking at switching to another carrier/MVNO and was considering between the POCO F3 and RealMe GT 5G.
Can anyone recommend carriers/MVNOs where these phones would possibly work on. I know frequency checker/Kimovil provide the compatible bands. But considering both phones don't have Band 71, I just wanted to check if anyone has been able to use these phones on US carriers and if so how did you go about getting the phones activated with the carriers.
Thanks
Click to expand...
Click to collapse
Well I'm Att and I just ordered the Poco f3 a couple of hours ago. So by next week I'll be able to tell you. I was going to go with the real me gt but didn't because the global model can't be bootloader unlocked and that to me means a no go. If I can't root it I don't want it. It's only a little bit better with specs it has the 888 and 65 watt charging which makes me a little jealous but I have to have viper4 android on my phone so I went Poco f3.
What band do you use for 4g lte? I use band 4 and it's never been a issue. I don't plan on 5g because I barely get 4g where I live
Techguy777 said:
Well I'm Att and I just ordered the Poco f3 a couple of hours ago. So by next week I'll be able to tell you. I was going to go with the real me gt but didn't because the global model can't be bootloader unlocked and that to me means a no go. If I can't root it I don't want it. It's only a little bit better with specs it has the 888 and 65 watt charging which makes me a little jealous but I have to have viper4 android on my phone so I went Poco f3.
What band do you use for 4g lte? I use band 4 and it's never been a issue. I don't plan on 5g because I barely get 4g where I live
Click to expand...
Click to collapse
Thanks for the response Techguy, I would be interested in knowing how it works out for you.
Considering that the Redmi Note 5 Global version only has Bands 4 & 5 for 4G, and Bands 2 & 5 for 3G, I believe it is running on HSPA+ on AT&T Prepaid mostly, as I only get the 4G symbol, not 4G LTE.
I did see for the RealMe and Poco F3, most of the 4G bands are supported on GoogleFI, just no 5G.
Rankone21 said:
Thanks for the response Techguy, I would be interested in knowing how it works out for you.
Considering that the Redmi Note 5 Global version only has Bands 4 & 5 for 4G, and Bands 2 & 5 for 3G, I believe it is running on HSPA+ on AT&T Prepaid mostly, as I only get the 4G symbol, not 4G LTE.
I did see for the RealMe and Poco F3, most of the 4G bands are supported on GoogleFI, just no 5G.
Click to expand...
Click to collapse
What 5g band do you need? It has n1,n3, n5, n8, n20 and n28, n41, n77, n78
Techguy777 said:
What 5g band do you need? It has n1,n3, n5, n8, n20 and n28, n41, n77, n78
Click to expand...
Click to collapse
Oh I just meant for GoogleFI, I don't think they have 5G currently not sure, as kimovil says Not Available. For AT&T and T-Mobile, it was 1 of the 3(AT&T) and 1 of the 4(T-Mobile) in terms of 5G bands.
However I'd be interested in knowing how you go about getting this activated on AT&T since it isn't on their Whitelist of phones that they are trying to limit users to.
Rankone21 said:
Oh I just meant for GoogleFI, I don't think they have 5G currently not sure, as kimovil says Not Available. For AT&T and T-Mobile, it was 1 of the 3(AT&T) and 1 of the 4(T-Mobile) in terms of 5G bands.
However I'd be interested in knowing how you go about getting this activated on AT&T since it isn't on their Whitelist of phones that they are trying to limit users to.
Click to expand...
Click to collapse
Im actually getting a free sim card from the government phone through SafeLink but SafeLink is a smaller part of ATT as that's what my sim reads as 4g band Att and I always buy unlocked phones with band 4 and put it in and it works. Nexus 6, S10lite international, moto G4, S7 and S7 edge both all of them same card just insert.
You don't understand they don't whitelist phones they are just saying these ones they know will work with volte and others will to they won't look at every phone. They won't say Poco f3 or realme because they want to sell Samsung and apple not Poco f3. It's money but if it has the band it'll work
Techguy777 said:
You don't understand they don't whitelist phones they are just saying these ones they know will work with volte and others will to they won't look at every phone. They won't say Poco f3 or realme because they want to sell Samsung and apple not Poco f3. It's money but if it has the band it'll work
Click to expand...
Click to collapse
I understand that part, but the above is not entirely true, hence the post. AT&T for example are activating devices based on the IMEI, even if it has the necessary bands they are saying it is not compatible. Some folks have been able to get around this and get them to activate the phone, but some haven't been able to
I don't know how true, but they told me if I were to take the SIM out of my Redmi Note 5, they will not be able to re-activate my phone. I haven't tried this so I can't say if this is actually the case.
It sounds like SafeLink may technically be a MVNO to Tracfone/AT&T, I do know outside of Cricket Wireless, a lot of the MVNOs aren't enforcing what AT&T is doing with their direct account holders. But technically since they are under AT&T's network, this will eventually trickle down, but it is yet to be seen how this will be handled by MVNO operators.
Rankone21 said:
I understand that part, but the above is not entirely true, hence the post. AT&T for example are activating devices based on the IMEI, even if it has the necessary bands they are saying it is not compatible. Some folks have been able to get around this and get them to activate the phone, but some haven't been able to
I don't know how true, but they told me if I were to take the SIM out of my Redmi Note 5, they will not be able to re-activate my phone. I haven't tried this so I can't say if this is actually the case.
It sounds like SafeLink may technically be a MVNO to Tracfone/AT&T, I do know outside of Cricket Wireless, a lot of the MVNOs aren't enforcing what AT&T is doing with their direct account holders. But technically since they are under AT&T's network, this will eventually trickle down, but it is yet to be seen how this will be handled by MVNO operators.
Click to expand...
Click to collapse
Yes I am under SafeLink/TracFone which is subsidies of AT&T. But if AT&T shuts off their 3g network I don't think they will leave it on for the SafeLink people. AT&T doesn't have to activate your phone in America their GSM you might have them tell you that like my brother brought the nexus 6 to Walmart for a straight talk card and the lady said it's Verizon we can't activate it. Well they should have stuck a sim card inside because it works on all 4 carries except sprint and Verizon are CDMA which means your phone does have to be put into their system to work but not with GSM networks like AT&T. Just try it once you have a sim card in the us I don't know if your in the US. They will tell you anything to sell you another phone from them.
Rankone21 said:
I understand that part, but the above is not entirely true, hence the post. AT&T for example are activating devices based on the IMEI, even if it has the necessary bands they are saying it is not compatible. Some folks have been able to get around this and get them to activate the phone, but some haven't been able to
I don't know how true, but they told me if I were to take the SIM out of my Redmi Note 5, they will not be able to re-activate my phone. I haven't tried this so I can't say if this is actually the case.
It sounds like SafeLink may technically be a MVNO to Tracfone/AT&T, I do know outside of Cricket Wireless, a lot of the MVNOs aren't enforcing what AT&T is doing with their direct account holders. But technically since they are under AT&T's network, this will eventually trickle down, but it is yet to be seen how this will be handled by MVNO operators.
Click to expand...
Click to collapse
I just got my Poco f3 and it works fine on ATT/SafeLink band 4. I don't have 5G so I don't know but it did show the 5g in the upper right hand on display but I checked the speed and it was the same as before so I didn't notice anything 30 to 50 mbps is usual. It's a great phone for the money bench of almost 700k on AnTuTu
Techguy777 said:
I just got my Poco f3 and it works fine on ATT/SafeLink band 4. I don't have 5G so I don't know but it did show the 5g in the upper right hand on display but I checked the speed and it was the same as before so I didn't notice anything 30 to 50 mbps is usual. It's a great phone for the money bench of almost 700k on AnTuTu
Click to expand...
Click to collapse
Thanks for confirming. How are you liking the phone so far?
I had an interesting conversation with AT&T yesterday on the whole topic. Their device compatibility system is really cracking on International Phones although as mentioned earlier, this isn't the case with a lot of MVNOs. The Global version of POCO F3 I think supports 6 of the 9 AT&T 4G Bands. But it's good that it's working for you nevertheless.
I think the POCO F3 is fully compatible with T-Mobile's network as well at least it is as per their online device compatibility tool, so that's another good option depending on the area.
Got some time to decide what I'm going to do, but it's good to know that the phone does work on US carriers.
Rankone21 said:
Thanks for confirming. How are you liking the phone so far?
I had an interesting conversation with AT&T yesterday on the whole topic. Their device compatibility system is really cracking on International Phones although as mentioned earlier, this isn't the case with a lot of MVNOs. The Global version of POCO F3 I think supports 6 of the 9 AT&T 4G Bands. But it's good that it's working for you nevertheless.
I think the POCO F3 is fully compatible with T-Mobile's network as well at least it is as per their online device compatibility tool, so that's another good option depending on the area.
Got some time to decide what I'm going to do, but it's good to know that the phone does work on US carriers.
Click to expand...
Click to collapse
Well so far so good, I didn't get it til 3pm today and I think I have Covid or the flu so I have been under the weather. But I ran bench scores and it's flagship level power. It charges faster than I was expecting, 5400mA on ampere when my S10 lite is 4500mA on a 45 watt charger so they make more use of less watts. I love it so far I doubt you'll notice a major difference between the Poco f3 and realme gt 5g. I love flashing custom roms and rooting my devices so if realme won't unlock the bootloader and release source codes to build on that makes the Poco f3 more for me.
I think if you buy a snapdragon 870 device if has the same bands as all snapdragon 870 devices and 888 has the same bands as all 888 because the modem is inside the CPU. I could be wrong I'm going to look into it but I think so.
It's a sweet phone the only difference from a flag ship is it's 1080p screen instead of 1440p and it doesn't have a mega good camera.
Techguy777 said:
Well so far so good, I didn't get it til 3pm today and I think I have Covid or the flu so I have been under the weather. But I ran bench scores and it's flagship level power. It charges faster than I was expecting, 5400mA on ampere when my S10 lite is 4500mA on a 45 watt charger so they make more use of less watts. I love it so far I doubt you'll notice a major difference between the Poco f3 and realme gt 5g. I love flashing custom roms and rooting my devices so if realme won't unlock the bootloader and release source codes to build on that makes the Poco f3 more for me.
I think if you buy a snapdragon 870 device if has the same bands as all snapdragon 870 devices and 888 has the same bands as all 888 because the modem is inside the CPU. I could be wrong I'm going to look into it but I think so.
It's a sweet phone the only difference from a flag ship is it's 1080p screen instead of 1440p and it doesn't have a mega good camera.
Click to expand...
Click to collapse
That's some good info. Yeah can't be too picky with a budget phone, for a budget phone outside of the camera it has a lot of close to flagship features.
How are you finding call quality so far? That's one thing that wasn't that great with the xiaomi redmi note 5, but attaching a headset resolves the issue.
Hope you start feeling better while enjoying your new phone. Feel better.
Rankone21 said:
That's some good info. Yeah can't be too picky with a budget phone, for a budget phone outside of the camera it has a lot of close to flagship features.
How are you finding call quality so far? That's one thing that wasn't that great with the xiaomi redmi note 5, but attaching a headset resolves the issue.
Hope you start feeling better while enjoying your new phone. Feel better.
Click to expand...
Click to collapse
I will have to get back with you on call quality because I do use headphones now. I have the master and dynamics MW08 and there awesome for calls. It's to late tonight to call anyone I'll let you know tomorrow. I can't stand the wait to unlock the bootloader. It takes 168 hours after you start the unlock process so 7 days than I can root and install viper4android

Signal

Hi guys. I want to buy this phone in a few weeks and I want to know if there are some signal problems ( I live in Romania). If there is more than this problem please say. Thanks!
Compare the bands available in Xiaomi Mi 10T variants with the bands used in your country by your SIM card carrier.

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