Hi, my i9505 has dead power button so i searched on the net and i i bought a not-working i9505 motherboard.
The problem was "sometimes it doesn't connect to the cellular network".
I installed the motherboard, sim was read correctly, insert pin.
All seems fine except it has serious problem registering to the network, and when it does ( maybe 1 or 2 times every 10/15 try ) it can only work in 2g mode, so only edge connection.
When it connectes in EDGE, after a few seconds, it disconnects, i see signal bars change and i understand it's connecting to 3G or 4G. Signal bars comes, but it acts like if it doesn't know how to communicate in that mode.
Using *#00111# i can see LTE freq. which is using.
I already tried unlocking using PERSO SHA256 OFF... unuseful try
Can you help me?
P.S. I forgot to say that IMEI seems fine, efs too.
Related
Hello guys i'm new here and I am confronting a strange issue with my Note 4 Sm910F, the phone works great ultil I connect it to my home wifi, then the nightmare begins, the wifi works very well but after 20 min my network (3G or 2G or LTE, it doesn't matter) drops but I still have all bars, so I cannot make calls or send messages, if I go to Settings>Networks to switch between LTE 3G 2G it doesn't let me, it stays locked, I must restart the phone to regain celular network and then after a while it repeats the problem again and again. I'm sick of it already, also I tried different roms but no luck, I said that the phone have hardware issues sooo NOW the baddest part is that I sold the phone and bought a fresh new sm910F that DOES THE SAME PROBLEM !!!
I tried with another wifi router, still same problem, my old note 3 works okay on the same wifi.... i`m out of ideas.
Please help with any advice. Thanks.
If Smart network switch is active, turn it off.
That's the only thing I can think of that's causing the problem.
JagDave said:
If Smart network switch is active, turn it off.
That's the only thing I can think of that's causing the problem.
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Click to collapse
it doesn't matter if I have that on or off...the celular network keeps crashing after a while if I am conected to my wifi. if i'm not using the wifi everything is okay.
Hi everyone !
Lately I went to a place were 3G/4G was not reachable and it is there that i noticed that my brand new Moto X play couldn't get any connection in 2G (GSM) mode even if the place was fully covered with 2G/EDGE (GSM)...
In 3G/4G there is no problem only on 2G (GSM).
I tried in the settings to put 2G (GSM) only and I can not get any signal even now that i'm back home ....
I tried a factory reset from the recovery it did not work :crying: Do you have an idea on how to solve that problem ?
I also tried to use the sim card with another phone in 2G (GSM) and there it works fine with maximal signal ....
Thanks ! :laugh:
Hallo,
I did a test and I got the same "problem".
Turned 4G into 3G...no problem.Still connected..
Turned 3G into 2G....no signal.
Turned 4G into 2G..no signal.
You can try to switch networktype in *#*#4636#*#*
No time for me now....I will try it later on the day.
hostel666 said:
You can try to switch networktype in *#*#4636#*#*
Click to expand...
Click to collapse
I just tried it and turned the networktype to "GSM only" then i got no signal just like before. If i try to use another type like CDMA/GSM it connects to 3G and works but still the problem with the GSM/2G....
Hi guys. I'm not experiencing this problem on my XT1562. switching between bands is fine and working on my device. What kernels are you guys using?
I'm using the stock kernel, I just flashed the OTA (6.0.1) from the stock recovery
Same Problem, more information
For my Moto Play X I have a very similar problem:
4G works, but 3G and 2G do not. If I'm connected to a 4G network, I see that there is reception and can use all data transfer functions. But when I want to do a call, I get a timeout. When I'm in a place where there is no 4G network available, I see that I don't have signal - but the network is shown in the list of available networks for manual selection.
As I have a dual SIM variant (stock ROM, not a custom modification or "upgrade") my second SIM does work like a charm. I tried now and swapped the SIMs - and it seems that just the SIM1 slot is having those problems. The same SIM also works perfectly in the second SIM slot.
I also tries to reset just the network settings (an option provided by the stock ROM) but this didn't change anything.
Next step I'm currently working on is doing a factory reset - will take a while until backup and restore will enable me to see the real result. I'll keep you up to date....
UPDATE: factory reset didn't change anything - will send phone to repair now. :,-(
Hello,
my note 4 - n910G recently started acting weird. It would register to the Vodafone AU, but if i try to call, it would show "Not registered to Network"
Also, sometimes everything works fine for like few minutes. 4g, calls, sms, everything sim related works. and then it would stop working again. it will still be connected to the network, but nothing works. the mobile data sign on status bar shows that Sending is green, but Receiving is nothing when this happens.
EDIT: Sometimes it wouldn't register at all too.
I have tried, factory reset, changed sim, and even done Device Initialization from Smart Switch, because for some reason, ODIN with re-partition pit was not deleting the data in the phone.
Thanks in advance.
UPDATE: so I can use 2g all the time. it's only 4g or 3g which is not stable. 4g network gets registered fast, but doesn't work most of the time. 3g takes way too much time to register, and works a for few minutes before going down.
Is it the network cable or something else? please help.
Same with me when I am in low network coverage area. In the same place same sim card works no problem in another phone.
I did:
1. Restart device and switch on/off airplane mode
2. Change different sim cards
3. Factory reset device
4. Installed root and custom rom (LineageOs). Problem first time occured on stock rom, without root, knox 0x0...
I am not sure, since I am first time using Note 4 in this area, but I think problem might happend sincet latest update...
I was thinking to buy S8 or Note 8 but after this I am not sure...
Some more update:
When 4g sometkmes works, it switches off the phone completely and have to replace the battery to turn on the mobile. Cannot just press the power button to turn on the mobile after it switches of
ishanism said:
Some more update:
When 4g sometkmes works, it switches off the phone completely and have to replace the battery to turn on the mobile. Cannot just press the power button to turn on the mobile after it switches of
Click to expand...
Click to collapse
So, did you fixed this bug?? I have same thing time-time.... ((
The issue is because you have a US Carrier variant of the Note 4, which isn't designed to work on GSM networks.
Hello.
Sorry for my English.
I have a problem with galaxy s4 consisting in that:
2G network works without problem, 4G LTE network will work fine, it will switch to 3G network, it displays no network or normal range but can not make outgoing and incoming calls. When trying to manually set the network is the same. 2G and 4G work without problems, but when the 3G is set to reach range, but when you try to ring immediately disconnect. Sometimes the message says that you can not connect to the network. I tried with the same card on the second S4 and it works fine. The rest of the sim card was replaced with a new one. APN configuration has been resumed. It has also been changed to the same system with the XEO-I9505XXUHPK2 modem. I also tried another I9505XXUHOH2 modem but then no network worked. I also called the operator and accepted the application but it was a problem with the phone. I put another card and once it worked but it was very weak to me (interrupted). The owner of the phone was also at the service they exchanged ... charging socket.
Please help because the phone must be ready for tomorrow evening.
Regards
Hi,
A bit late, but open up the dialer and type: *#06#
Does it show an IMEI number? If so, does it start with 0049?
Hey guys,
I've been using my Note 4 for a couple years and it was running smoothly before but now it started showing issue, I hope y'all can help me with these problems..
Problem 1: Dual-Band WiFi Connectivity Issue
My N910G could not connect or even find any 5GHz frequency WiFi connection(neither my home WiFi nor the others),
but it shows no issue connecting the 2.5GHz frequency. My home router is working perfectly fine and my other devices which supports 5Ghz band have no issues connecting to my home router so I don't think this is the router at fault. I've tried reset my N910G to factory setting, at the setup it miraculously connect to the 5GHz band without a problem but as soon as I turn the WiFi off or leave it after a while, it disconnected and it does not show any 5GHz after that.
Problem 2: N910G Poor Cell Signal Strength
Okay, now this is a bit tricky. Recently, I changed to a new cell company and sign up for a postpaid package with LTE data only, the sim card is new but as soon as I insert it into my N910G and reboot it. The signal strength of my phone only range from 0 to 2(which is from -80dBm and above) and rarely reaches 4 or 5(highest) but I still can connect to the 4G network, it's just the signal is very poor. At first, I thought it was the sim card at fault but I tried trying it out on another phone and it works just fine.
Can someone help me out with these two problems? Is it because of faulty hardware or software? Does flashing a new custom rom helps to solve these problems?
i have same proplem with 910f is reading sim card and ther'es no signal :'(
bokharimw2 said:
i have same proplem with 910f is reading sim card and ther'es no signal :'(
Click to expand...
Click to collapse
I know right. It's very frustrating.. :crying: My one can't even use 5GHz WiFi..