Hello to all
is almost three months that I'm struggling with an annoying problem
the tablet I lose the signal gsm, it appears the rod antenna and it does not work, sometimes it takes a few minutes sometimes hours
initially I thought it was problem of SIM, I replaced the SIM but the problem remained, always recurs every random and in different places
After all the tests I took the tablet into a service center if you are required a month, just access the tablet has presented the same problem
any of you have had these problems, I would avoid staying for another month without a tablet
Thanks to all
Francesco
Related
I'm having a rather specific and odd problem with my captivate(s), three of them to be exact. First I bought the phone, upgrading from an Iphone 3g, and the first day it was great, the second day, in the evening, I noticed that it started this strange rebooting loop. The phone doesn't seem to power off because I don't see the Galaxy S symbol it just merely goes black then comes back and searches for the network, finds it, then a few minutes later goes black again, returns, search for the network, and so on. It keeps doing that over and over again. So I tried a factory reset the next morning just to make sure it wasn't a problem with any apps installed. The same rebooting loop happened. So I called a rep and dropped by the ATT store and they said it might be the sim card, which was very very old (still said cingular) so we swapped it. Same problem the next day. Okay so I went and I replaced the whole phone. The second day with Captivate #2, this rebooting loop occurred again. The reps told me that I might have gotten two bad ones and to exchange it again, so I did. And yet again I have the same problem. So here are some quick facts about the problem that I have learned. Total time span has been about 3 weeks.
-The most important thing to know about this issue is that the only thing that prevents the phone from going into this rebooting loop is if I enable flight mode, no network connectivity. I believe wi-fi is okay but whenever I disconnect from ATT's network it stops rebooting.
-Occurs more frequently at night/evening (only happened once in the morning)
-Is not affected by signal strength, full bars, low bars.
-Is not affected by installed apps (Had done factory resets and with my third captivate all I did was put the sim card in and put it in my pocket)
-Is not affected by battery status, low or full
-Doesn't seem to matter if I have a lot of things running or nothing running, the loop starts when I'm browsing, texting, in a call, or just locked in my pocket.
-Does not seem to be affected by charging source (wall, car, laptop, ps3/xbox)
Another thing to note is that I had an Iphone 3G with an unlimited data plan before this. The Captivate upgrade was done on another line on my family plan then given to me with a 2gb data plan. After talking to multiple reps over the phone, they said they had the wrong IMEI number (I have no idea what that means) but that leads me to wonder what else is wrong and is it a problem with the Captivates or ATT itself?
I really need some feedback because I'm about to just give up on this phone, which is heartbreaking because I fell in love it. My 30 days is approaching and if I am indeed returning it, it'll have to be very soon. What do you guys think?
Hi all,
I have recently purchased a Tinji GT-i9300 4.7" S3 clone phone with Android 4.1.1 and Kernel 3.0.13
It all works fine apart from the signal/service freezes all the time. The signal will freeze with-say showing 4 bars even though I'm now in a no-signal area, I could even put it in a lead box and the signal indicator would still be stuck on 4 bars. When it freezes, I loose all service, even if I'm in a strong signal area. It might be something to do with when it's been sleeping for a while. I can get the service back by selecting Airplane mode and then unselecting it.
I've tried different SIMs from different providers, but they all act the same.
I've tried the obvious, like reset to factory. And I've google'd for ages, trying to find an answer.
Does anyone have any ideas or a later firmware that I can try? or do I send the phone back to China?
Thanks for looking.
Just some extra information
Just some extra information:
I have stopped the phone from going to sleep and have adjusted the CPU (I had to root the phone) to not drop down low, and it's not lost the service for hours. I will experiment more to find out if it's the sleeping or the CPU speed dropping that is causing this problem.
I believe this is quite a common issue on many android phones.
I FIXED THIS PROMBLEM!!!!!
This probably isn't going to be the answer for most of you but it worked for me. I tried all of the suggested fixes first and had tried 3 different SIMs and my phone still had the radio service freeze.
Yesterday I went into the EE (Orange) shop and got a brand-new SIM and now my phone works perfect and even the signal strength is a lot better.
Try getting a new SIM, it MIGHT FIX your problems. GL
Hello,
I'm asking for some help to diagnose my call problems on UMTS.
First of all, three things happened recently, and let's assume that they happened roughly at the same time:
I dropped my Nexus 5 on concrete shattering the screen completely;
Google released Lollipop which some people believe has problems with 3G and LTE;
I'm using a rather old SIM card manually cut to fit micro-SIM dimensions.
About two days after receiving my Nexus 5 back from guys servicing it (new LCD screen) I had a telephone conversation that was disconnecting once every minute or two. There was no problem recalling though. The same day later I noticed that dialer app says "Emergency calls only" which was pretty weird. I was on Cyanogenmod 11, some recent nightly back then.
My first guess - revert to earlier nightly via TWRP. It didn't help - I was still on emergency calls only and nobody was able to call me. However, I could browse Internet without any problems on 3G.
Second guess - clean flash stock 5.0.1. It didn't help too, however calling went back on for some time (several minutes) before breaking back to "Emergency calls only".
Third guess - buy a starter SIM and check if it works. It did at first but stopped after an hour or so.
Fourth guess - bring the phone back to guys servicing the LCD to check antennas. I've left it for two days. It was opened and antennas checked. Everything was fine, not even a bent flex.
For all this time when on 3G/LTE data transmission worked flawlessly. I could download Google Maps, browse the Internet, whatever. It's just the very basic phone function that acts weird - as if I wasn't registered to a network. Everything seems to work fine on 2G, except for very rare disconnects (once per two, or three days).
So, considering it's pretty weird I'm seeking for help - could it be possible that after hitting concrete something broke down on the motherboard that results in such weird behavior? Or is, perhaps, my retro-SIM dying? Any ideas? Maybe flashing a well-tested radio ROM? Diagnostic apps?
Hi
My girlfriend also owns a oneplus one. She had the screen repaired, since then she doesn't have signal all the time. Sometimes it works, sometimes it doesn't. She tried to fix it with another sim but no effect. But last week we went abroad twice and when we were abroad she had signal all the time, and as soon as we got back in Belgium she lost signal again. Now since a day or 2 she has even less signal and she can't send messages or call even with signal.
Just adding that I also own a oneplus and I use the same provider and I have signal everywhere and I have no issues at all.
Anybody that has a solution or might know what the problem is?
Thanks in advance
Anthony
Hello.
I bought this phone about an week ago, and after two days i noticed that i couldn´t make or receive phone calls, after a litte bit of research i noticed that the phone only has network signal on 4G areas and when i try to switch to 3g or 2g it takes a lot of time (about 2 minutes) or most of the time it doesn't get any signal.
I´ve already done 2 factory resets , switched the sim card and i still cant make calls.
Is there any way to solve this?, because if i activate the warranty it will take a lot of time to get my phone back.
Miguel_j said:
Hello.
I bought this phone about an week ago, and after two days i noticed that i couldn´t make or receive phone calls, after a litte bit of research i noticed that the phone only has network signal on 4G areas and when i try to switch to 3g or 2g it takes a lot of time (about 2 minutes) or most of the time it doesn't get any signal.
I´ve already done 2 factory resets , switched the sim card and i still cant make calls.
Is there any way to solve this?, because if i activate the warranty it will take a lot of time to get my phone back.
Click to expand...
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Seems like manufacturing defect. I guess you would have already tried network mode and automatic search.