Author: mitch002

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03:50, Jan-21-2017 | From PC
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redmi 4 prime not seeing 4G+,please fix global rom

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23:11, Jan-25-2017 | From PC
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MI5 pro not seeing 4G+ please fix

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00:13, Jan-26-2017 | From Mi 5
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In Poland without Band20 (LTE@800Mhz) it's hard to use LTE CA. Only possible mix is LTE 1800Mhz + 2600Mhz in cities. This can give around theoretical 225Mb/s or 262Mb/s but it's hard to use it. In almost all Europe band B20 (800Mhz) is the most important band. Maybe Xiaomi or somebody from developers unlock this band for Mi5 users

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15:11, Feb-21-2017 | From PC
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i have mi5 32 gig version(2CA) . in iran band 1800 , 2600 is active and other phone can see lte+ but my mi5 not seeing 4g+ . why ?

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22:11, Feb-23-2017 | From Mi 5
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in Malaysia 4g+ also not working as mi5 pro does not cater b3 + b7

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00:58, Feb-26-2017 | From PC
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This post was edited by vvevvevve at 12:42, Feb-26-2017

Here's my xqcn file that can be used to enable CA_3_7, CA_3_38, CA_7_3, CA_38_3, CA_3_7_7, CA_7_3_7 and CA_7_7_3 CA combos on Mi5.
Extensive tests in Russian MTS and Megafon networks have revealed that CA_3_7 and CA_3_7_7 work exellent, while with active CA_7_3, CA_7_3_7 and CA_7_7_3 combos there are some instability issues that seem to be phone(modem firmware?)-related (other devices work well in similar cases).
CA_3_38 and CA_38_3 haven't been tested yet since there's no support of them here until 2017Q2 at least.

In order to make use of mentioned xqcn file you should add its contents to phone's modem subsystem' filesystem, EFS. This can be done with QPST, for example. Switch phone's USB composition to one with diagnostic port included (code *#*#717717#*#* in dialer), install Qualcomm drivers for diag port (VID_05C6&PID_90AD&MI_00), run QPST Configuration app and add diag port to its list (if not added automatically). Next, launch QPST Software Download app, select Restore tab, set path to xqcn file and push the Start button. Added CA combos will become active right after reboot.

Does anybody know the way to contact Xiaomi's firmware developer team? It would be great to dicsuss numerous CA-related stuff with them - say, CA_7_* issues mentioned above and some other things.

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Istiaque Ahamed Rifat

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02:24, Feb-26-2017 | From Mi 5
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Nicely explained.. thanks
Please use Reply button or do @Rifat.bd so I can get a notification and reply faster.

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17:39, Mar-08-2017 | From PC
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vvevvevve replied at 2017-2-26 00:58
Here's my xqcn file that can be used to enable CA_3_7, CA_3_38, CA_7_3, CA_38_3, CA_3_7_7, CA_7_3_7  ...

Fantastic!

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17:41, Mar-08-2017 | From Mi 5
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Thank You

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14:56, Mar-09-2017 | From PC
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Excellent information, thanks for sharing

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