Problem with 4g/4g+/LTE in home

[Jim1996s]

Hello everyone. Being almost obsesed with this I am subscribed to a lot of forums, and telegram groups related to POCO X3. Yesterday a POCO enthusiast having the same problem we are having, told me that he fixed the problem by flashing the stock rom via fastboot. This ROM is bigger than the recovery one.

Yesterday I request to unloock the bootloader. As soon as it gets unlocked I will try this solution.

 

[yasser_fernandez]

I will try using a single phisical line today. At least having two and disabling one the problem is still there.

 

[Jim1996s]

.

 

[yasser_fernandez]

Testing with a single SIM. The problem is still there

 

[yasser_fernandez]

It is almost unusable. And I am talking about taking minutes for a single whatsapp message to be sent

 

[yasser_fernandez]

Yesterday I finally unlocked my Poco bootloader and I could flash Stock Global ROM via Fastboot. To realize if there was any difference in terms of connectivity I needed to get home, there signal is bad and mobile data is terrible, almost unusable with POCO X3. At first nothing has changed and I felt terribly disappointed. BUT

Next day!!!! Tadan....there was a significant change. Unfortunately I could´t test too much because I needed to go to work, where there is no problem. Now I can´t wait to go back and try. But in the meantime. Is there any settle in time required by the ROM/Radio/Kernel...to get the best connectivity? Was it a placebo effect?

 

[Freed431]

Next day!!!! Tadan....there was a significant change. Unfortunately I could´t test too much because I needed to go to work, where there is no problem. Now I can´t wait to go back and try

This is good news! If the problem is solved, please tell us when you get home.

 

[cabarella]

Yesterday I finally unlocked my Poco bootloader and I could flash Stock Global ROM via Fastboot. To realize if there was any difference in terms of connectivity I needed to get home, there signal is bad and mobile data is terrible, almost unusable with POCO X3. At first nothing has changed and I felt terribly disappointed. BUT

Next day!!!! Tadan....there was a significant change. Unfortunately I could´t test too much because I needed to go to work, where there is no problem. Now I can´t wait to go back and try. But in the meantime. Is there any settle in time required by the ROM/Radio/Kernel...to get the best connectivity? Was it a placebo effect?

Yes thank you let us know, I'm having the same problem and looking for a solution to solve it

 

[paqqno]

It is almost unusable. And I am talking about taking minutes for a single whatsapp message to be sent

dude, you are our last hope or something

 

[madmanwild]

I'm joining, I also have this problem. MIUI Global 12.0.7.

 

[yasser_fernandez]

Hello everyone.

Before giving a solution that has worked for me, I would like to talk about my context. I live in a city, that has centainly a low density of radios, so it is nomal that inside the house the 4G signal is very low.

With that being said I realize that my POCO was more sensitive than for instance an iPhone 6S, that, with the same signal behaves MUCH better. At this scenario, even going out where signal is stronger, data was almost unusable in 4G.

Leo, a very smart guy from a Telegram POCO channel, told me to fix this problem, unlocking the bootloader and flashing Global Stock ROM via fastboot, and I did it. You know what? It fixed the problem. The signal is not stronger, but the experience is totally different, as it should.

It is hard to say that this solution is one size fits all but at least in my case it works, it is not a placebo effect. The bennefics are REAL.

Hoping you guys has the same effect!

Regards.

 

[cabarella]

Hello everyone.

Before giving a solution that has worked for me, I would like to talk about my context. I live in a city, that has centainly a low density of radios, so it is nomal that inside the house the 4G signal is very low.

With that being said I realize that my POCO was more sensitive than for instance an iPhone 6S, that, with the same signal behaves MUCH better. At this scenario, even going out where signal is stronger, data was almost unusable in 4G.

Leo, a very smart guy from a Telegram POCO channel, told me to fix this problem, unlocking the bootloader and flashing Global Stock ROM via fastboot, and I did it. You know what? It fixed the problem. The signal is not stronger, but the experience is totally different, as it should.

It is hard to say that this solution is one size fits all but at least in my case it works, it is not a placebo effect. The bennefics are REAL.

Hoping you guys has the same effect!

Regards.

Great thanks, since I'm not an expert about modding, can you link me a guide/tutorial on how to unlock the bootloader and flash the global stock rom?

 

[paqqno]

Has anyone else tried this method what yasser_fernandez described?

 

[yasser_fernandez]

Hello everyone. After some days with the new ROM I can still say it was better than before, but still far from other phones around. I am starting to think the real issue is hardware related.

 

[Poluux]

Just got the phone, 4g is very bad compair to the Samsung s10. It's sometimes more than 4 times slower in download : 100mb/s for the s10, 20mb/s for the poco), upload is even worse, not even a mega (indoor at the exact same place). Anyone found a fix? I'm full stock with the latest update.

 

[veniciusgp]

Just got the phone, 4g is very bad compair to the Samsung s10. It's sometimes more than 4 times slower in download : 100mb/s for the s10, 20mb/s for the poco), upload is even worse, not even a mega (indoor at the exact same place). Anyone found a fix? I'm full stock with the latest update.

This problem is appearing to be poor quality of the antenna. I think it is a problem that has no solution with software fix. I have already compared poco x3 with several other cell phones from different manufacturers and the poco always performs worse whether 4g/4g+ or wifi.

 

[Poluux]

This problem is appearing to be poor quality of the antenna. I think it is a problem that has no solution with software fix. I have already compared poco x3 with several other cell phones from different manufacturers and the poco always performs worse whether 4g/4g+ or wifi.

Thanks for your reply. It's really too bad so I'll send it back tomorrow

 

[WTTSS]

Hello, I had the same problem as you, I looked in several forums and I watched several videos said to be 100% effective without success, so I decided to go through all the network settings of the phone to find a solution, and that ended up paying off, I changed the network mode through the menu * # * # 4636 # * # * on the call keypad, I put illustrations below to better understand, you just do a google search to find the right combination for your operator and your region, for me in any case it works, no more cut in 4G during a call, more speed, here is hoping that it serves you as well as 'to me. Have a good day.

 

[pnin]

For some unknown reason, I'm now facing a similar problem in Xiaomi.eu v12.0.7.0.

At first, I supposedly had 4G connections but couldn't make any calls -- a message popped up saying "Can't place call because there are no calling accounts which support calls of this type".

Looking for a solution, I cleared data and cache for the qcrilmsgtunnel system app and rebooted, after which I was able to make some calls, but lost 4G/LTE -- so I have no 4G sign anymore next to mobile connection.

"Phone Info" (*#*#4636#*#*) takes some time to start, at first I assumed it wasn't working at all, but it eventually showed up.

"Mobile Radio Power" and "Enable DSDS" are the only buttons enabled, "VoLTE Provisioned", "Video Calling Provisioned", and "Wifi Calling Provisioned" are all grayed out.

Phone info preferred connection was set to "LTE/TS-CDMA/UMTS" at first and I changed it to "LTE/CDMA/UMTS auto (PRL)" but this change doesn't seem to stick after reboots.

Any help/pointers appreciated.

 

[pnin]

Duh! Problem solved.

Put the SIM card in another device and yet the problem persisted; so I went to the service provider shop with it...

Turns out they had blocked my data access (but not calling, believe or not) without notifying me -- all for lack of payment.

Everything settled. Damn leeches.