No service after replacing loudspeaker

[zh5]

Hi! I have Sony xperia m4 aqua and I recently changed the Loudspeaker because it had bad sound. When i installed the new speaker and turned the phone back on the sound problem was gone, but I don't have network. It says emergency calls only and I can't call anyone or be called by anyone. Searched a lot on the web but no luck so far. Tried to manually register network from settings-mobile networks-search networks but no result. I changed the sim card, no change. Restarted the phone many times.
Please help!

 

[valyo_bg]

Maybe you forgot to connect antenna or some connector inside phone during replacing of earphone.?You will need to open again phone to inspect all connectors inside.

 

[zh5]

Maybe you forgot to connect antenna or some connector inside phone during replacing of earphone.?You will need to open again phone to inspect all connectors inside.

There's a a little progress. I opened it again and reatached the signal anthena cable on the downside(which you can reach after removing the loudspeaker). Maybe it got loosen after removing the bad loudspeaker. Turned the phone back on and it found network. But now there's another problem. The strength of the signal is not full and the Wi-Fi isn't there or it founds it for a little bit and then it's gone. So I'm wondering now if this little cable is the problem and should I try to change it.

P.S. Bulgarian too

 

[valyo_bg]

Maybe you should check WiFi antenna if it's properly connected, inspect visual cable for cracks and etc. If WiFi work fine before changing of loudspeaker, then should work now if everything is good connected. Try to reconnect all connectors inside phone.

 

[zh5]

Maybe you should check WiFi antenna if it's properly connected, inspect visual cable for cracks and etc. If WiFi work fine before changing of loudspeaker, then should work now if everything is good connected. Try to reconnect all connectors inside phone.

Yes it worked fine before changing the loudspeaker. I just opened it again it visually I don't see anything that isn't good connected. The only thing i can think of is maybe this cable
Sony Xperia M4 Aqua Signal Antenna Repair Guide - which is on youtube
could be damaged, but i'm not sure and don't know how could've damaged it. I don't know. If you like i can take a pic and upload it.

 

[valyo_bg]

Yes, take photo to see if I can help or somebody else with more experience .

 

[zh5]

Yes, take photo to see if I can help or somebody else with more experience .

Here it is (after removed battery and loudspeaker)

 

[valyo_bg]

You should inspect both coaxial cables connected at left and right. Maybe there are not good connected, try to reseat both of them on both sides to see if this will helps. Use magnify lens (лупа) to inspect cables and connectors more precisely.

 

[zh5]

you should inspect both coaxial cables connected at left and right. Maybe there are not good connected, try to reseat both of them on both sides to see if this will helps. Use magnify lens (лупа) to inspect cables and connectors more precisely.

ok

 

[valyo_bg]

This is a English based forum. Tiny white cable is for antenna. Check both cable and connectors.

 

[knightazura]

Hi there
My sister phone also get this issue too. Her phone model number is E2353.
But it just suddenly happen yesterday. There's nothing critical activities that she did.
I've already try
1. Toggle the wifi, airplane mode
2. Reboot into safe mode
3. Manually register the network

What's going on with her phone?

 

[wolverine_2k]

Hi there
My sister phone also get this issue too. Her phone model number is E2353.
But it just suddenly happen yesterday. There's nothing critical activities that she did.
I've already try
1. Toggle the wifi, airplane mode
2. Reboot into safe mode
3. Manually register the network

What's going on with her phone?

Did she drop the phone by any chance? Or has she taken it into the water? No matter how much Sony claim their phones to be waterproof, they're never 100% waterproof especially when they get older (the heat from charging/general use loosens the glue/seals a bit).

 

[motebelep]

Did she drop the phone by any chance? Or has she taken it into the water? No matter how much Sony claim their phones to be waterproof, they're never 100% waterproof especially when they get older (the heat from charging/general use loosens the glue/seals a bit).

I've got a curious problem because I can hear the voice of the person I called but she/he can't hear me

 

[wolverine_2k]

I've got a curious problem because I can hear the voice of the person I called but she/he can't hear me

Is your loud speaker working?

I believe the speaker is built into the same unit as the mic. If the loudspeaker isn't working either, then it's an issue with the cable. If your mic is dead and loud speaker is working, then it's a lot harder as that board is quite a pain to replace.