No Band 20/Band 3 LTE Carrier Aggregration - Xiaomi Mi A2 / 6X Guides, News, & Discussion

My A2 does not do any carrier aggregration anymore between Band 20 (800MHz) and Band 3 (1800MHz). However, it is still doing Carrier Aggregration on other combinations:
800/2100
800/2600
900/1800
900/1800/2100
Is there anybody else with this problem that 4G+ is not showing up with this combination where it did in the past?

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[Q] How can i enable ALL LTE BANDS and EDGE on F320

Hi,
I found OPO ONE + tutorial about adding LTE BAND in Qualcomm device and i want to make the same thing with my LG F320K.
I try to add GSM and 3G BAND by putting 844425030534016 in 1877 nv value with QSDM but when i start QPST software
downloader it didn't show me a change after a reboot. I try to change this value with QPST Software Downloader and i ve got this error: NV_IMEI_SV, that don't allow me to make the change.
I want to add LTE B20 800Mhz but cannot.
Can someone give me the Qcn backup of an international D802 or help me to activate all necessary network in my country (France)?
Thanks a lot, best regards.
844425030534016 with mzTool gave me:
[Bit_07] GSM DCS 1800 band
[Bit_08] GSM Extended GSM (E-GSM) band
[Bit_09] GSM Primary GSM (P-GSM) band
[Bit_18] GSM 750 band
[Bit_19] GSM 850 band
[Bit_20] GSM Railways GSM 900 Band
[Bit_21] GSM PCS 1900 band
[Bit_22] WCDMA Band I - EUROPE JAPAN & CHINA IMT 2100 band
[Bit_23] WCDMA Band II - US PCS 1900 band
[Bit_24] WCDMA Band III - EUROPE & CHINA DCS 1800 band
[Bit_26] WCDMA Band V - US 850 band
[Bit_48] WCDMA Band VII - EUROPE 2600 band
[Bit_49] WCDMA Band VIII - EUROPE & JAPAN 900 band

Is it possible to change the LTE Band?

Hello i have nexus 6P
I have a problem with the LTE sometimes once in a while the Internet disconnected for a few seconds
I wanted to know if it is possible to allow the TD-LTE 2600 (B38) and LTE Band 9 - B9 (1800)?
if yes how ?
this is obviously not for the NA model (H1511)
if you talking about world model (H1512) it already supports both of those bands and would connect automatically to whichever is available/strongest

lumia 950XL and T-Mobile band 12 - 700 band

My phone: Lumia 950XL.
I ust got off the phone with T-Mobile tech support and they tell me my phone doesn't support band 12 which is the 700 band that breaks through concrete. Anyone have this phone with good T-Mobile LTE service. I found that my phone does have band 12 by typing ##3282# on my phone dialer then sending the call. It shows this band in a long list of other bands. The band is also check marked showing that it's active.
As I understand it, the issue isn't whether the phone is capable of using LTE Band 12 (700 MHz), but T-Mobile's requirement that the phone support VoLTE as they are deploying Band 12 as LTE-only and in areas where they don't have alternate UMTS support on other bands that the phone can drop into for calls. Unfortunately, VoLTE and WiFi Calling implementations are carrier-specific in the US and Microsoft doesn't seem to be able to support either on non-branded phones. Similar issues exist for me with my 950 XL on AT&T - no HDVoice (VoLTE) or WiFi Calling available.

How to change the LTE band in our device?

I want to change the LTE band of my device. For eg. The present LTE band of my device is band 3. I want to change it from band 3 to band 40. How to change it?
There's no such thing as "changing LTE bands"
There's no such thing as "changing LTE bands"
You either have bands 1,3,5,7,8,19,20,28,38,41 (XT1562) or 1,2,3,4,5,7,8,12,17,28 (XT1563) or 1,3,5,7,8,19,20,28,38,40,41 (India)
Your phone will use the best band available at any time.
I watched a video on youtube. He changed the band on his samsung phone.

Is it possible to enable band 20 H990N?

Is it possible to enable band 20 H990N?
Hi, I have the H990N model, I live in Spain and I have problems with 4G coverage.
In the specifications of the mobile it indicates that it has the band 20, but it only takes me in LTE band 3.
Is it possible to enable band 20 in my model ?. This frequency has greater coverage in my country
I'm Root.
If I enter inside the hidden menu, the band 20 appears, but if I select it, it appears fail as with the rest of the bands.
I would appreciate any help.

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