[Discussion] Redmi Note 3 Pro (KATE) misconfigured LTE-A (4G+) - Xiaomi Redmi Note 3 Guides, News, & Discussion

With Xiaomi Redmi Note 3 Pro (KATE), LTE 4G Carrier Aggregation cant working via interband, only intraband available. In Hungary (and many other countries), need CA_3A_7A and CA_3A_20A for proper LTE-A as advertised. (Cat6 4G+) At the moment, only CA_3A_3A, CA_7A_7A and CA_20A_20A available. (for 5/10/20+5/10/20MHz)
I opened a bug report in MIUI forums, please press CONFIRM button to MIUI Developer Team pay more attention to this bug.
With Mi5, a russian guy able to modify NVRAM to use interband CA, at the moment i cant able to do this with my Redmi Note3 pro... Link - use google translate or check here.

Which app you are using to watch those information?

Network Signal Guru

I found NVRAM settings, it seems empty. Still waiting for russian guy to reply.

Confirmed.

Anyone has some hi-res picture from RN3PSE mainboard, without RF shields, or some schematics? Maybe there is some hardware limitation, and LTE category/speed is a false advertised by Xiaomi...

????same problem in iran.cant use 4G+ with redmi note 3 pro.xiaomi support team should solve this problem.

We have this problem in Iran
All Xiaomi phones do not support carrier aggregation b3+b7

i think send feedback to xiaomi support team .perhaps solve this problem in next update.
in iran carrier is b3+b7 too.but this damn phone not support.
how much speed your carrier in your country without 4G+??
in iran without 4G+ 3mB/s download speed.
????

Same problem in France
Envoyé de mon Redmi Note 3 en utilisant Tapatalk

Same with Orange France, no carrier aggregation between bands

????
please solve not support b3+b7 in redmi note 3 pro in iran
???

Under discussion in MIUI forums, please need more confirm from owners!
http://en.miui.com/forum.php?mod=viewthread&tid=557855

I think I have just enabled it by modding NVRAM thanks to the tip pointed out by @wwenigma in the screenshot by replacing it with the values I got for google.
Anyway please do help to verify, is this legit 4G+? All help will be greatly appreciated. Thanks!

This is very interesting.

hereitbegins said:
Anyway please do help to verify, is this legit 4G+? All help will be greatly appreciated. Thanks!
Click to expand...
Click to collapse
No. Only 1 carrier. Tested 1,5 month ago. Two things are possible. First, something missing in MODEM and need developers to fix it. Second is worst, hardware problem. Someone need to open the phone case and manually check the RF Switch in the PCB, what they used...very likely they used a cheap 1way switch and not possible to route all needed antenna signal to signal processor (no an2 port). Thats why i try to find hi-res pics from PCB or cad file, wiring diagram, etc. In this case, need hardware modification for LTE-A (bypass RF switch or connect antenna wires before switch.
I made a sheet about NV bits.
For more research i need a notebook to check more information on field with QXDM, OR i need something to process NSG (Network Signal Guru) logs (cant working with my QCAT.. .:/ )
Anyway, please press CONFIRM button in MIUI forum...

wwenigma said:
No. Only 1 carrier. Tested 1,5 month ago. Two things are possible. First, something missing in MODEM and need developers to fix it. Second is worst, hardware problem. Someone need to open the phone case and manually check the RF Switch in the PCB, what they used...very likely they used a cheap 1way switch and not possible to route all needed antenna signal to signal processor (no an2 port). Thats why i try to find hi-res pics from PCB or cad file, wiring diagram, etc. In this case, need hardware modification for LTE-A (bypass RF switch or connect antenna wires before switch.
I made a sheet about NV bits.
For more research i need a notebook to check more information on field with QXDM, OR i need something to process NSG (Network Signal Guru) logs (cant working with my QCAT.. .:/ )
Anyway, please press CONFIRM button in MIUI forum...
Click to expand...
Click to collapse
Already done that ever since I saw this thread. Really hope Xiaomi can fix this somehow.

In Italy my Kate does quite well: with H+ 26,46Mbps Down / 4,84Mbps Up and 75ms latency

fester40 said:
In Italy my Kate does quite well: with H+ 26,46Mbps Down / 4,84Mbps Up and 75ms latency
Click to expand...
Click to collapse
We want 4G+ (or LTE-A/LTE+), H+ (HSPA+) is slower than 4G/LTE (without the +).
Read:
https://en.wikipedia.org/wiki/Evolved_High_Speed_Packet_Access
https://it.wikipedia.org/wiki/HSPA_evoluto
https://en.wikipedia.org/wiki/LTE_Advanced
https://it.wikipedia.org/wiki/LTE_Advanced

Sorry I misunderstod the topic, the max is 4G here: few minutes ago 32.66 Down / 13.53 Up, 22 latency

Related

[Q] Another issue with a chinese clone

Hello,
I bought a T3333 on a chinese website (i know it was a bad idea). It is pretty good except for the signal.
I have a very bad signal in general and sometimes even outside. It was windows mobile 6.5. When i returned it they said that it was a well known issue and the manufacturer knows how to fix it.
When it came back it has Android inside. I didn t know Android and it is great os but the signal is still the same.
I installed some applis about antenna and signal and i would like to modify the band frequency or the radio frequency because i suspect that it does not look for the good signal. I tried to enter the test mode (the *#46... thing) but it doesn t work.
I read a lot trying to find a solution and arrived at this forum. It seems that it is possible to change the radio rom but i did not find the one for Android:
http://forum.xda-developers.com/showthread.php?p=8433676#post8433676
I live in France.
You are my last hope.
Can anyone help me?
Regards,
Adel
Your device not is HTC original
Clone device is different. In this forum you can find only tips and tricks, rom and more for original HTC Touch2 Mega T3333. Your device is different for CPU, radio electronical components and more. I'm sorry but you can't find solution. You can try only to modify antenna of your device. I tried clone last year but i see device is more bad quality of electronics component. GPS on my clone for example report me movement 6Km/h but I not moving. Wifi scan report no networks but with HTC Touch elfin see four networks. GSM Signal is 30% low respect of Elfin or My Mega. I decided to change device because this issue not found solution. Is bad idea buy chinese clone because quality is very low. You can try in chinese forum only.
ok. i dont know how i can modify antenna. This phone is great except for the bad reception.next month i will go abroad. I will check if i have better signal. If no, it means that i should get another phone.
I will try meanwhile chinese mobile phone forum.
Thanks anyway.

LTE 4G problem! No automatic switching from 2G/3G to 4G network during data flow

Hello,
I don´t know, maybe I´m blind and could not find similar problem in the forum, or maybe none of you noticed it?
Since weeks, I enjoy the immediate network change 2G > 3G and 4G (just looking hat the Phone, but not used a App thats need data connection)
Today I just go on my work route and listen to internet radio for the first time again, that of course is continuously loading data.
But to my shock, I realized that he not switch from the usual point of H network to the 4G LTE network as usual.
I suspected bad and wanted to exclude the TuneIn app, and i turned on at the same time Google Maps, colesed TuneIn, scolled in Maps so that data flow´s ........ nothing happens, it stays in the H+ network, then i changed to the speed test an check the speed ..... it´s about 5 mbits, so actually still no LTE ( it does not show so well on )
I do this few more minutes and then closed all the apps at the same time. Now he has logged into the LTE network !
What a F..K is that? :-/
That means, if i'm traveling around and an app constantly pulls data, the Note stay only in 2G/3G network, because it changes only to 4G when no data flow is!
WTF!
Could someone test the same, maybe mine is broken or something like that.
Greetings Frank
Gesendet von meinem SM-N9005 mit Tapatalk
I had the exact same problem on my note2 also. Its very annoying. Fortunately for me that only affects me if I am tethered, otherwise I don't have an app that keeps pulling data for too long. I have not found any solution for this issue. It seems that is how the radios are supposed to function to not disable a data connection in the middle of something.
Ehrpd seems to have fixed the whole cutting off of data streams for me when switching back and forth between networks, which is awesome. Unfortunately the note 3 seems to love 3g and hate 4g most days unless I toggle airplane mode manually.
ozaghloul said:
I had the exact same problem on my note2 also.
Click to expand...
Click to collapse
Only with your Note 2, or with Note 3 too?
My Note 2 LTE with Vodafone was horrible, after 2 months I gave it back to the dealer and changed my contract also back. To much trouble all the time. LTE not usable if you are on road / driving.
Now with Note 3 i changed back again to LTE Test driver
It works much better, but the switching problem between 3G and 4G is really bad for me.
Which provider you use?
Gesendet von meinem SM-N9005 mit Tapatalk
buell47 said:
Hello,
I don´t know, maybe I´m blind and could not find similar problem in the forum, or maybe none of you noticed it?
Since weeks, I enjoy the immediate network change 2G > 3G and 4G (just looking hat the Phone, but not used a App thats need data connection)
Today I just go on my work route and listen to internet radio for the first time again, that of course is continuously loading data.
But to my shock, I realized that he not switch from the usual point of H network to the 4G LTE network as usual.
I suspected bad and wanted to exclude the TuneIn app, and i turned on at the same time Google Maps, colesed TuneIn, scolled in Maps so that data flow´s ........ nothing happens, it stays in the H+ network, then i changed to the speed test an check the speed ..... it´s about 5 mbits, so actually still no LTE ( it does not show so well on )
I do this few more minutes and then closed all the apps at the same time. Now he has logged into the LTE network !
What a F..K is that? :-/
That means, if i'm traveling around and an app constantly pulls data, the Note stay only in 2G/3G network, because it changes only to 4G when no data flow is!
WTF!
Could someone test the same, maybe mine is broken or something like that.
Greetings Frank
Click to expand...
Click to collapse
Same problem with my Lenovo A6020A46. It can't auto change 4G/LTE to 3G/2G. Don't know what's wrong with this ROM. Even its the latest Nougat updated on 07 Aug 2017.
dilpreet22g3 said:
Same problem with my Lenovo A6020A46. It can't auto change 4G/LTE to 3G/2G. Don't know what's wrong with this ROM. Even its the latest Nougat updated on 07 Aug 2017.
Click to expand...
Click to collapse
Note 3 rom ??
Its Lenovo Vibe K5 Plus
dilpreet22g3 said:
Its Lenovo Vibe K5 Plus
Click to expand...
Click to collapse
So why post in Note 3 forum ??
I didnt aware about it, is there any rule that I cant post at another post?
I post here just to find any solution.
B'cuz noboday asked it in Lenovo's link.
dilpreet22g3 said:
I didnt aware about it, is there any rule that I cant post at another post?
I post here just to find any solution.
B'cuz noboday asked it in Lenovo's link.
Click to expand...
Click to collapse
But they are two different products and flashing a file from Note 3 forum or altering settings may brick your phone .
JJEgan said:
But they are two different products and flashing a file from Note 3 forum or altering settings may brick your phone .
Click to expand...
Click to collapse
Thanks for assistance..

problem with note3 sm-n9005 signal

hello,
i have a very annoying problem
i just bought my note3 2 days ago and i found out that it has a very bad signal reception in my home although the signal has two and sometimes 3 bars in it!! but it says "emergency calls only"!
the thing that worries me is that, i had note1 and the signal reception was way better, i also tried many mobiles and they all good!!
so i wanted to knew if there is anything i can do to solve this problem?
i'm on lollipop 5.0
also from egypt.
many thanks in advance
Return to the store and ask for a replacement .
Have you tested the signal in other places ??
the device is an international version with no guarantee so i can't replace it.
Check your APN's [Settings] [Mobile Networks] [Access Point Names] and make sure the correct one is selected. You might need to contact your provider. Also check [Preferred Network] is not just set to (say) 3G and your provider doesn't provide that one.
Does Wifi work OK? You may need to update your firmware - I'm presuming you are still on the OS the phone came with. It's possible the phone was built for somewhere else and the Modem is not right for Egypt. (unlikely but possible)
There's an app on Play Store called Phone INFO (samsung) that will give lots of details about just what your phone is.

Redmi 3s 2g network issue

Hi guys,
I have been facing really bad network issue for redmi 3s prime.. Basically there is alot of people facing this issue.. The problem is when network drop to 2g it will not revert back to 3g or 4g.. One of the facing issue sometimes when i drop it will go to IWLAN..
The workaround tips is we use 2 sims and sacrifice our sd card..which some of us dowan to..one other tip is to open gps and open google maps and let it run on background..which will drain our battery..
Some of the user said it is kernel issue, some rom issue and some said it is hardware issue..
I hope someone here will help to sort this problem..
Thanks and best regards..
There is no fix. Even with using Second SIM my phone (international model) kept dropping to 2G. It is also missing bands it claims to have. Only fix possible is if Xiaomi update their radio/modem drivers.

Manually Select/Disable/Enable Bands

Hello everyone! I am trying to find out how to enable/disable certain bands. My company installs cell phone boosters for people that have poor signal, and i need to be able to select a single band at a time to do speed tests.
I know this is possible with Samsung devices, but was wondering if anyone found a way to lock to a single frequency.
This is possible with Samsung devices but unaware of any way to do this with a Oneplus 8. I think its even possible to do it on the tmobile version?
Any help would be greatly appreciated. (I am also rooted if that helps.)
Wow. I may be onto something. Anyone want to test this out?
**Disclaimer** Do it at your own risk.
I found this. Seems to let me change to whatever band I choose. But the only way I can seem to get back to "all bands" or "automatic" is by selecting all of the ones I use.
Or by typing *#*#4636#*#* and selecting the second from bottom
Download quickshortcutmaker from play store.
Look for: com.oneplus.engmode.bandmode
It was almost all the way down at the bottom for me. (My search doesn't seem to work)
I don't think this requires root or how I found it but it's working! (But, I am rooted, Android 11, stock room)
not sure who else could use this but I hope it helps someone!
Should all be unlocked from begin with, we should have access to all the bands as we're paying to access our networks not Oneplus
You must not have read the op.... He wanted to lock onto a single band to do a speed test for signal booster purposes. Your respknce was a waste of time.
Op, nice job on the work around for yourself
Good information and screen shots! cheers

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