Signal dropping very bad after flashing stock JB - Galaxy S Advance I9070 Q&A, Help & Troubleshooting

So I used CM 11 Team Canjica for almost a year but I really got tired of the bad battery backup and sometimes the force close error. Now I have flashed the Stock JB 4.1 via Odin but I am not getting signal at the same position in my house where I used to get 2 bars of signal in CM 11. When I move my phone near the window then the signal will come but it drops after few second and I am not able to call from inside my house. This is a Stock JB problem as I did not have this problem in CM 11 TC. Now what should I do to get my signal back? I also flashed the Cocore refresh r24 kernel via Universal Kernel flash but I am still getting the same signal drop problem.

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No signal after kernel upgrade?

I flashed a new kernel through Odin, after the reboot, there was no signal.
This also happens for all other kernels I flashed after that.
The signal would only appear if I used a ROM without a flashing a different kernel.
Any idea why?
On a side note, I'm still getting previous ROM stuff ( Apps, data, wallpapers ) even after I repartioned everything and reverted back to stock. Any idea why too?
No signal = not set up APN for network .
jje

[Q] HELP! Wifi issues!!!

I have Motorola XT701 (Milestone,Motoroi or whatever) and I flashed a sbf and the wifi has very good signal but I don't have the android market. If I try to root and install a much better rom with market the wifi signal is very weak. I tried to open the sbf and the CG39.smg (system image) and replaced the app folder in there but when I compile the new sbf I can't flashed because the RSD is giving checksum errors! I had installed even CM7 wich is great at speed and market is present but the wifi has very weak signal. In all roms I had this problem maybe because most of them are for the milestone A853 or A953 or whatever? Should I edit a specific CGxx.smg? The wifi signal is the only problem I have after I root, but I like the phone very much!
Wrong device forum, but I'll help ya.
Install your SBF that's missing the market. Don't modify it.
Once you're up and running, go into your recovery and install the gapps.zip that matches your Android version (gb, ics, etc.) as an update. It will add the Google apps to your ROM's read-only filesystem. (This is done on the device, not from the PC.)
If that doesn't work, you could always just look for a com.android.vending APK....
thanks for the answer, but the problem is the wifi. why is the signal so low now, after 5 months from when i baught the phone?!?!
Maybe problem with indicator
I have seen this in many ROMs. In some ROMs the indicator shows low signal even when the signal strength is just fine. Are you having trouble browsing or downloading stuff?
yes. the wifi is 2lines of 4 at half of meter from the router. at 2 metters is 1/4 lines. do i have to flash something additional besides the sbf for the android or the sbf for cm 7?

Signal drop

while on custom roms after 10-15 minutes of booting up the signaofl sim1l drops and hd(volte) icon is gone but on the ui it shows full signal and when i open settings there is no option to search signals can'tuse volte and stuff had to reboot and same problem occurs after 10-15 minutes
while on stock/stock based roms the signal or sim2 drops and in ui its also shown and it come back after a while
treid nougat roms , freedom os , stock , sultan cm13 , custom kernels still same problem occurs tried using different firmware , and also tried to restore efs of stock based rom on custom roms but it broke the dialer i.e call doesn't connects
please help me can't use nougat as daily driver
sorry for my bad English
on freedom 1.7

Phone reboots itself when loss signal

Hi. My phone keeps restarting itself when the signal lost (Examples: out of lifts, basements and etc). I've updated the firmware to the latest one, V40 and already even try the previous firmware V37. I'm having this issue when using custom rom and even Miui stock rom. Does someone having the same problem with me?
I think the main culprit have to do with the phone trying to search for signal and it goes into a power cycle.
Thank you.

Wifi disconnects on Android 10

I have the SM-N960F running Android 10 I have Dr keton ROM it's has magisk 20.4. The problem I have is i get a exclamation at the side of the wifi signal at times. Sometimes I just see that the signal is perfectly normal then all of the sudden I lose connection. I'm watching YT and it starts to buffer or I'm browsing and I get can't connect to the internet error. The only way to fix it if I toggle the wifi off and on and it works. It only works for a few minutes and it starts again the ROM was a clean flash when that happened. I then ended up flashing a custom kernel called beastmode the latest version and it made it worse. So I reflashed keton rom which I only reflashed the kernel and the CSC. My other devices don't have that problem I know it's not my router. I use my Moto X without any issue whatsoever. It's not just with Dr keton I get the same issue with Alexis, ALEXNDR.,

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