Last two mounts i have extreme issues whit this ****. From time to time after random reboot cannot get network signal with any sim card i put in ,no the one i'm working with or other. Seems that only solution is factory reset , have hard reset if with new kdz 2aa and still nothing. Doesn't have exactly time for this issue , happens whenever it wants. Otherwise phone is fully operational and without other issues.
So most probably the issue was caused by bad connection to the mobile antenna that is connected via few pins under the cover ( under battery ).
Have tried to check is the sim issue with few programs that read the info from sim card chip ( many in app store ). Saw that there isn't issue whit reading it so problem was even on the modem chip , antenna or the connections between them. After opening the phone ( easy 1-2-3 ) i have fully disconnected the mobo ( not sure it was needed ) and clean up the connection surfaces for the cover , and looked up for any suspicious chip ( burned or something ). After this have put everything back and now phone is working like it should.
Haven't have issue with the reception before the intervention but i'm not sure it's exactly bad connection or faulty chip that is working from time to time. Fact is that it's currently working fine for several days ( 4 ).
Already planning to move on other phone because i'm sick of the bad support from VRZ , planning to use Huawei P20/P20lite or Mate10/Mate10lite
Related
Dear all,
I have a Legend with S-ON (1.01), and I used fake-flash to change ROMs. The mobile phone has been fine with a custom ROM for more than 3 months now.
Suddenly, 3 days ago, the phone rebooted while browsing settings and when it came back on, the device could not recognize the SIM card or connect to the network and get a signal.
The problem is weird because the device (a) can find networks if I search for them, (b) can make emergency calls, (c) connects normally to both wi-fi and the SIM 3G internet but does not:
- get signal (always zero lines)
- recognize the sim card (always asks me to rescan for new contacts, and the process fails)
I tried wiping everything, I tried reflashing, I tried flashing another ROM. The problem persists.
Would flashing a new RADIO potentially help? It is the only thing I have not tried.
I am really at a loss here. The device did not fall down, or had a knock or any other user damage. The problem started suddenly and i can'f find a way out of it.
Anyone who manages to find me a solution gets a paypal beer
PS: Something important is that the phone DOES know that SIM card is there, and DOES partially recognize it: I am asked to put my SIM card PIN, which is accepted correctly.
Hey
What I'd do:
1.)Try the SIM in another device - could be a SIM problem...
2.) As you are 1.01, there is no risk in Warranty repair, so unroot and send back to shop if the sim proves OK in another device..
Probably a stupid suggestion but i had at one point no service when my battery cover was not on...
When i was rooting mine, i kept the battery cover off because i was stuck so many times in the middle of running step 1... so never bothered putting the battery cover on...
after i succeeded in rooting, i still saw no service... but as soon as i put the battery cover on , i was able to pick up the network
@QkSi1ver: The Legend's antenna is located in the battery cover, which is why you would have had no reception with it removed.
LeifAlbor said:
@QkSi1ver: The Legend's antenna is located in the battery cover, which is why you would have had no reception with it removed.
Click to expand...
Click to collapse
Which could be the reason for the SIM problems : if it is not set correctly it can't communicate proper with the mobile , that's why it asks for searching for contacts ( I had a similar problem a few months ago )
no network signal!
QkSi1ver said:
Probably a stupid suggestion but i had at one point no service when my battery cover was not on...
When i was rooting mine, i kept the battery cover off because i was stuck so many times in the middle of running step 1... so never bothered putting the battery cover on...
after i succeeded in rooting, i still saw no service... but as soon as i put the battery cover on , i was able to pick up the network
Click to expand...
Click to collapse
i don´t believe it! first of all, thank u kindly for ending my nightmarish odyssey through expert forums across the globe!
that just did the trick, uber cool! and yet it sucks, because i wasted most of my sunday and half of today to solve this, wondering why nobody even mentioned connection probs.
maan, i´m tired, i´m going to bed!
Hellu!
A friend of mine dropped her SGS2 accidentally into the bathtub but was quick to retrieve it. After drying it she got it to run but there was no response from the USB port so she couldn't recharge it. I replaced the USB flex and while having it hooked to the computer I upgraded it to the latest firmware through KIES, all official and no trouble. Gave it back and now she can't get signal... Problem is that I don't know if the signal trouble was before I replaced the USB port incase I "broke" something while fixing it.
No signal, no mobile network. I get no signal and can't make any connections to any provider.
Things I've been trying and reading up on..
IMEI is correct, the EFS folder intact ("mount" in Terminal emulator) and backed up also.
Opened up the phone again to check if internal antenna was attached to the sockets and everything else secured.
Tried different SIM cards which it accepts except for no signal
Factory reset
Flashed a lower ICS (4.0.3), changed CSC, tried different basebands
Rooted the phone and did a complete reset from CWM (dalvik, format system, cache the wholeshobang)
Internet wifi works, the signal strenght is stuck on "-111 dBm 1 asu"
The whole time after the water accident she's been having the phone with her without the backcase, leaving it open. I read that if you connect a external antenna it will override the internal one and get stuck.. I though maybe keys or something metal in her purse got in contact with it?! (I know, far stretched)
Perhaps the USB flex replacement is bad since one end of the internal antenna is attached to it. I could try to replace it back to the bad usb flex.
OR... Perhaps it's just another failure due to the water accident...
Phone seems to be in great shape except for missing it's main purpose, being able to call
Help
Menvaihelv... said:
Hellu!
A friend of mine dropped her SGS2 accidentally into the bathtub but was quick to retrieve it. After drying it she got it to run but there was no response from the USB port so she couldn't recharge it. I replaced the USB flex and while having it hooked to the computer I upgraded it to the latest firmware through KIES, all official and no trouble. Gave it back and now she can't get signal... Problem is that I don't know if the signal trouble was before I replaced the USB port incase I "broke" something while fixing it.
No signal, no mobile network. I get no signal and can't make any connections to any provider.
Things I've been trying and reading up on..
IMEI is correct, the EFS folder intact and backed up also.
Opened up the phone again to check if internal antenna was attached to the sockets and everything else secured.
Tried different SIM cards which it accepts except for no signal
Factory reset
Flashed a lower ICS (4.0.3), changed CSC, tried different basebands
Rooted the phone and did a complete reset from CWM (dalvik, format system, cache the wholeshobang)
Internet works, the signal strenght is stuck on "-111 dBm 1 asu"
The whole time after the water accident she's been having the phone with her without the backcase, leaving it open. I read that if you connect a external antenna it will override the internal one and get stuck.. I though maybe keys or something metal in her purse got in contact with it?! (I know, far stretched)
Perhaps the USB flex replacement is bad since one end of the internal antenna is attached to it. I could try to replace it back to the bad usb flex.
OR... Perhaps it's just another failure due to the water accident...
Phone seems to be in great shape except for missing it's main purpose, being able to call
Help
Click to expand...
Click to collapse
try one of the custom ROMs with a latest modem
ctg60000 said:
try one of the custom ROMs with a latest modem
Click to expand...
Click to collapse
Nope, tried it and no go, seems more like there is a hardware failure after all, any more ideas?
Tried another USB flex to see if that was the problem but no.. . Anyone?
Ok.. Replaced the GSM/speaker part located at the backpart now and still no signal. Well.. When i reboot the phone I get a connection and may be able to make a short phonecall then it's just back to no signal.
Been reading up alot and I found out there is some kinda "no service bug" that exists, but all the solutions there didn't work so good.
I have same problem on a i9300 gonna see if it's antenna problem or something. And post back of I got lucky
Seems like the phone needs to get some service center time.....
BTW never connect anything to the external antenna socket.
Sent from my digital submersible hovercraft.
I have a similar problem with a i9300. Is there a way to check if modem or antenna is not working? I remember about read a few days ago than android throw some errores when modem is not working
My girlfriend has had a Samsung S3 (I9300) for a couple of months and has had no issues with it however she dropped it and broke the LCD . I ordered a replacement screen (Front glass, LCD, and digitizer) from eBay and fitted this without any problems. I tested all functions on the phone and it seemed to be working okay. The same evening my girlfriend went and run the update and went from 4.0.4 (I think) to 4.1.2 since then she has complained about signal issues which I have now witnessed myself. I wished she had waited a bit longer to make sure the phone was working fine before doing any updates as now I am not sure if this is a software related problem or hardware. There is no way to revert back to the older version to confirm software. I know one option on the software side would be to root it and install a customer rom but I have never done this before and even though reading through the forums the process seems to be easy I am a bit reluctant to do this just now.
The signal indicator sometimes shows a circle with a line through it, sometimes it shows a grey triangle with no bars in it and other times it will show a bar or two and even a full signal. I have noticed even without a sim in it that it can show a couple of bars of signal. I have not got this confused with the Wi-Fi signal. When trying to send text messages or make a phone call the following errors come up “Not registered on network” and “No signal found for mobile network”
Below is what I have done/checked so far
I have restored the phone to factory settings but as explained before this will only restore to 4.1.2. This time the only apps on the phone are stock apps, no additional apps have been installed just encase a third party software may have caused issues.
Her sim will work in any other phone. I have an S2 and have ported my number over from a normal sim to a brand new micro sim to try in her phone. Both of these phones are on O2.
I have made sure the IMEI number is correct and matches what the phone came shipped with.
I have double checked the APN details and these match what my S2 has. Although I am pretty sure this is only for internet and MMS and would not affect SMS and phone calls.
After check over the settings and restoring to factory settings I have fitted a replacement antenna which I also got from eBay. I doubt I have damaged the mainboard as all other functions on the phone work fine. (Touchscreen, Cameras, Sound, Wi-Fi)
For some reason I can get the phone to work at my house on both GSM (2G) and WXCDA (3G) although it seems to be more stable when it is on GSM. As soon as I leave my house and go into town (approx. 2 mile away) or over to my girlfriends (approx. 20 miles away) it will stop working. I have gone onto the O2 website and entered both of our post codes on the O2 network coverage checker and this reports that there are no services down in our area and that we should have a good signal.
I have come on this forum for some advice and hopefully someone can recommend what I could do next. I have had a little browse on the forum already but is there something I have missed? Should I root the phone and install a customer rom? If it was caused by the official update is there an a hotfix of some sort coming soon? Or is this a genuine fault with the phone? If it is a fault with the phone and it has not be caused by me I could try sending it back to O2 (where the phone was purchased from) or Samsung seeing as I can’t see any warranty seals so think I would get away with this.
Thanks in advance for any responses I get to this and I am sorry if I have rambled on and provided info that is not essential.
Flash O2 stock rom via Odin .
If that does not fix it its a hardware repair job and you will be refused warranty as you have self repaired .
jje
Hi guys,
First post so please bear with me...
The phone was dropped recently and screen smashed up badly.
Replaced screen and thought all was working fine until tried to make a call/send a message when I discovered that the phone had no network access...
Here's the diagnostic process I've been through...
Wifi works100%
Sim works in other phones
Other sims don't work in this phone.
Checked the antenna assembly to ensure contacts okay
Sim definitely reading - able to read sim contacts
Switched to airplane mode, reboot, turn back on - no luck
Searched for networks manually - no networks found at all. Another phone (samsung galaxy gio) finds all three (Optus, telstra, Vodafone)
No networks detected automatically either
No network detected using 2g only
So, if my wifi is working fine, that should rule out an antenna issue which to me indicates a hardware fault with the network side of things...
Is there a way to verify this is actually the case? And if so, is there a way to repair/solve it without doing a motherboard replacement???
Here was I thinking that it would be a cheap, easy repair... :/
Philbo29 said:
Hi guys,
First post so please bear with me...
The phone was dropped recently and screen smashed up badly.
Replaced screen and thought all was working fine until tried to make a call/send a message when I discovered that the phone had no network access...
Here's the diagnostic process I've been through...
Wifi works100%
Sim works in other phones
Other sims don't work in this phone.
Checked the antenna assembly to ensure contacts okay
Sim definitely reading - able to read sim contacts
Switched to airplane mode, reboot, turn back on - no luck
Searched for networks manually - no networks found at all. Another phone (samsung galaxy gio) finds all three (Optus, telstra, Vodafone)
No networks detected automatically either
No network detected using 2g only
So, if my wifi is working fine, that should rule out an antenna issue which to me indicates a hardware fault with the network side of things...
Is there a way to verify this is actually the case? And if so, is there a way to repair/solve it without doing a motherboard replacement???
Here was I thinking that it would be a cheap, easy repair... :/
Click to expand...
Click to collapse
If you want it free of cost so first try flashing new firmware via odin and then check it if not then give it to service centre !:good:
Make sure you're using a stock rom just in case it is a software problem, but it looks like a hardware problem to me. I recommend taking it back to the repair centre where you got your screen replaced.
I don't think it is possible without a motherboard replacement.
Not sent from a ACE but a CooperVe using Tapatalk 2.
thanks
I think I'll do a total strip down again just to make doubly sure that i've got absolutely everything connected in the right place and then if it's still not resolved, I'll look at sourcing a motherboard through some chinese friends...
The phone was actually purchased when in china, and as a result I had to flash it with an Aussie rom to get the google back in android. It's all worked fine since then until dropped which makes me think it's hardware related. problem with buying it in China is that I can't seem to find a motherboard online for it galaxy ace 5830i (the 'i' is the problem... can find plenty of 5830 mobos but seems the consensus is using a 5830 mobo will brick the phone...)
Oh well, thanks for the advice guys.
Even i had the same problem, but i solved it by flashing a stock ROM. You can try that or flash a stok kernel
recently I also had this same problem, even installing the stock rom did not solve, so I researched in several places and saw what could be problem with the IMEI, I did the whole process of repair IMEI and my phone is back to normal , try this method:
http://forum.xda-developers.com/showthread.php?t=1968360
Sent from my GT-S5830i
So...
I pulled it apart again to double check everything and noticed that the cell chip had come disconnected from the mobo upon impact and was only attached by three copper strips. After staring at it under a bright light for a while (no magnifying glass was to be found!), we stuck some super glue under it and tried to dry contact all the points... but it still didn't work.
However... after talking with a mate who's into circuit boards, he suggested that I try putting the mobo in the oven at 350 deg for 15 min to resolder all the joints as they use low-temp solder on these sort of boards.
I've got nothing to lose, so will be giving this a try when I get a chance and see if this brings it back!
I'll post back my results.
Yeah, and I recommend using a fine tip on your soldering iron just to be safe.
Not sent from a ACE but a CooperVe using Tapatalk 2.
Hello! I want to start by telling my english is not the best so i will do my best.
I have an s6 edge 925f that is around 1.5 years old. The battery is really bad so i watched a change battery movie on Youtube, ordered new battery. Got the battery and started to open up my phone.
Everything whent well some things was hard to figure out but nothing was broken and new battery is in. I started the phone and tested functions to confirm everything was ok. So i thought everything was ok until i was going away from home and my wifi was away. Now i noticed i got none signal from gsm.
Checked my sim card and controlled all settings and nothing helped. Opened the phone again and could not find anything wrong. So how can i continue my troubleshooting? Where is the antenna and what could got broken?
Another wierd thing is when i was drivning into another village my LTE signal found network so i thought everything was fine so i drove home. When i got outside LTE area the gsm was totally off again.
Any ideas whats happening with my phone?
Best regards Christian.
Anyone?
I have the same issue. I checked everyhting and all is well connected. Sometimes it will take LTE/4G signal but the phone gets very hot. If I leave it to GSM only I do not have any problem. Temperature is normal etc.
I have same issue with my phone and i think it is GSM unlock or faulty GSM IC because i purchased it second hand from somebody
Somebody told me i can fix this issue for you just by software modifying but i didnt trust him, have you checked your IMEI is real by checking in imei.info
The IMEI is real. The location of the antenna is in the midframe? Maybe a bad connection of some kind.