XIaomi Mi5S Plus 4+64 GPS, Bluetooth, Wifi 2.4 low signal

[dogrishin]

Hi, I've got an issue with my Mi5S Plus phone.
It finds only 4-5 sattelites via GPS while other phone finds 21.
Bluetooth works within 2-3 meters only.
Wifi 2.4 Hz works in 5-6 meters max and shows low signal strength.
Meanwhile Wifi 5 Hz works pretty well.
LTE works ok.
It's chinese phone with Global ROM 9.6.2.0 installed.
Mac adress in about phone is not empty.
Is that hardware or software issue?
Looks like antena issue but where is it and where are antena connectors in Mi5S Plus?
Will flash of ROM help? (I did not try it yet)
Any help is highly appreciated! I face such issue for the first time and searching the internet does not help.

 

[Crescendo Xenomorph]

open the phone, the antenna for anything except cellular are the tiny pogo connector that should be in contact with the respective pads in the back case...

clean the back case's pad for the respective contact points and try it again...

 

[Crescendo Xenomorph]

@dogrishin were you able to fix it?

 

[dogrishin]

@dogrishin were you able to fix it?

No I did not try it yet. I will definitely update with results. Thanks for your support, Crescendo!

 

[dogrishin]

Great Thanks!

@dogrishin were you able to fix it?

Thank you Crescendo again! I finally succeeded to fix it.
Chinese seller broke connector in the left upper corner of PCB when he disassembled phone to flash Global ROM via ETL loader I suppose.
I had to solder another connector and so now it's finally working as it should: Wifi 2.4, bluetooth, GPS signals are strong.
So it was 100% hardware issue, not related to software.
For other guys with same issue I advice to disassemble according to video on YouTube:
"Как разобрать Xiaomi Mi5s Plus (2016070) Разборка и ремонт"
And if you have same issue, bring it to repairman so he will solder you another connector fast and cheap.

 

[dogrishin]

Thank you Crescendo again! I finally succeeded to fix it.
Chinese seller broke connector in the left upper corner of PCB when he disassembled phone to flash Global ROM via ETL loader I suppose.
I had to solder another connector and so now it's finally working as it should: Wifi 2.4, bluetooth, GPS signals are strong.
So it was 100% hardware issue, not related to software.
For other guys with same issue I advice to disassemble according to video on YouTube:
"Как разобрать Xiaomi Mi5s Plus (2016070) Разборка и ремонт"
And if you have same issue, bring it to repairman so he will solder you another connector fast and cheap.

I cannot post URLs as I an novice here, you can see them by these links:
_http://i66.tinypic.com/33couip.png
_http://i68.tinypic.com/2jbwo6q.png
_https://www.youtube.com/watch?v=iTmSfh91lc4

 

[Crescendo Xenomorph]

thanks for the clear photo & pinpoint accuracy.

I can only guess the connectors coz they're plenty on top part of the phone... [emoji38]

Mine's not broken but the GPS (only the GPS) signal is weak... weaker than my wife's, same model same configs.

it all happened after I opened the phone for cleaning..., maybe the pin isn't making good contact with the antenna, I'll reopen it tom & try to bend it forward carefully...

again thanks for the clear explanation & photo...

glad it's all ok for you...

Sent from my MI 5s Plus using Tapatalk

 

[kaboom83]

@dogrishin is it possible to repost the photos of the connector that you have fixed, they're gone from tinypic (perhaps upload to imgur or somewhere)
@Crescendo Xenomorph have you figured out which connector specifically is the GPS antenna?

I have the same problem after I had to disconnect and re-connect the battery. I haven't broken any pins or replaced anything in the phone but after putting it back together the GPS signal is insanely weak. Takes forever for a position fix and keeps losing it after. Also Wi-Fi is dead one wall away from the router. I've carefully bent all the pins a bit towards the back-case today and had no great improvement.

 

[Crescendo Xenomorph]

I think it's the second one from the top right, coz I broke mine & the wifi is gone...
Had to get it replaced to makewifi work again, but my take is usually just fix all connectors inside since I can't be sure....