Question Root related cell reception issues? - ASUS ROG Phone 5 / 5s

I purchased a used US version Rog Phone 5 recently through an online seller. When receiving the phone, I gave it a good once over and powered it on and tested wifi and such and everything seemed to be in good working order. I then rooted the phone and set most of stuff up. After inserting my sim card, I noticed the cell reception was not that great. I suffered through for a couple of days but was missing calls and texts like crazy. I was constantly dropping reception entirely in areas where I have very good signal with other phones. The phone is essentially useless now. I tried several factory resets, flashed back to the non-rooted boot image, and then flashed to an older firmware with no improvements to signal. I can't imagine the reception issue is in any way related to the rooting process, but I'm throwing this out there just in case anyone has seen anything similar in the past.
A few things to note:
I am on AT&T
The APN is definitively configured correctly
I could have returned the phone to the online seller for a refund prior to unlocking the bootloader, but did not insert a sim before rooting, so I have no idea whether the issue was present from purchase or not. Lesson learned, I suppose... do a more thoroughly inspection before doing anything that will void a warranty or refund agreement.
I have tried the same sim in two other phones with no issues.
Everything else about the phone seems to work perfectly, only poor reception.
I had the phone up to approximately 30 miles from my house with no change, so it isn't limited to a specific tower.
Does anyone have any ideas? If I don't come up with anything I will be posting it on ebay as "not working - for parts only" so I will try about anything at this point.

Sim recognition issue
Owned the phone for about a month now. Phone was working perfectly fine for the majority of this time. I use 2 different sims and they were both working smoothly until recently. A few days ago, I woke up and the phone wouldn't recognize the Sim...
forum.xda-developers.com
sim card problem
just all of sudden it became invalid sim try multiple time reset or clear data cache sim toolkit original sim to other phone is working other sim to original phone is working other sim to other phone is working anyone face the same problem...
forum.xda-developers.com
Sounds like they pawned the issue off on you, but it should still be under warranty to have it repaired. When you contact Asus, don't mention unlocking the bootloader. Stick to the hardware concerns.

I have looked over both of those threads, but it seems to be a different issue. My sim is recognized fine, its just the signal strength that appears to be extremely low. Even when the phone has no service at all, it still recognizes the AT&T sim is present.

cpenticuff said:
I have looked over both of those threads, but it seems to be a different issue. My sim is recognized fine, its just the signal strength that appears to be extremely low. Even when the phone has no service at all, it still recognizes the AT&T sim is present.
Click to expand...
Click to collapse
Yes, it is not the same issue, but it appears to be a similar issue. The important detail being that both required a motherboard replacement.

Related

[Q] help with spontaneously unrecognized SIM card

Ok, I'm going to give you guys the whole background story just to cover all the bases.
I've had a Nexus S for about 6 months, never had a hitch. Rooted it, etc etc all fine and dandy.
About two weeks ago, I updated it to CM 7.1 RC1. So far so good.
I've always had the same Vodafone SIM card, which has accompanied me through a couple of phones. Last week, I went to London and bought a UK pay as you go card, to use data without roaming. Perfect. No problems whatsoever.
So, to make it clear, I never had problems with my original (portuguese) SIM card, nor with the british one I had just bought.
However, it was upon my return that I realized I had forgotten my SIM card at my friend's house. I quickly stopped by the Vodafone store at the airport, where they promptly gave me a new SIM, ready to use within a couple of hours.
Since then, my phone after a short period of being on, spontaneously fails to detect the SIM card/no longer recognizes it. I've tried scanning for networks in the settings, but it won't let me register again. It takes a reboot to get it working. Thing is after a couple of minutes or hours, it happens again.
I have since exchanged the new SIM card with a newer one , also from Vodafone, albeit a different store. Yet, the problem persists.
I didn't alter any settings between Portugal-UK-Portugal, so everything should be exactly the same. Does anyone know how to solve this or why this happens?
Faulty phone?
Faulty radio?
Faulty SIM cards?
ROM bug?
Any help is appreciated.

Galaxy Nexus LTE Won't Hold LTE Signal

I'm posting here on behalf of a friend because I've tried everything I think I can do to help, but to no avail. I'll try to make this quick.
My friend bought a Galaxy Nexus LTE in December and it worked great for a few weeks, until the vibrator in the phone broke - he took it to a VZW store and they replaced it for him.
Upon receiving the replacement phone, he was having trouble with LTE staying connected. It would continuously drop and instead of falling back to 3G, it says he has no signal - signal indicator in settings displays a red bar (i.e. no coverage).
He took it back to VZW and they tried his SIM card in an employees phone - same issue happened to that phone. They then tried his SIM in a new phone off the shelf, same thing happened again.
Verizon is saying it's an issue with something at the account level, but I've encouraged him to go in and complain until they give him another replacement, just in case. However, it's very odd that his SIM card in three different GNex devices produces the same issue, even though his first one worked great. They have said that a future software update would fix this.
The other day I installed the leaked 4.0.4 update on his phone to see if the new radios would work, but the same issue kept happening. So I reverted him back to 4.0.2 so he could take his phone back to Verizon and beg for another replacement. Unfortunately I forgot to re-lock his phone so I still have to do that before he takes it in.
Has anyone ever heard of this before? It seems so odd that his SIM card would do this, but I still think that Verizon owes him another replacement device since he has a phone that isn't working like it should. He's getting a big discount on his family plan but he'd prefer to have LTE on his new phone.
I would love your thoughts - this just doesn't make sense to us. Any suggestions other than replacing the phone again? It sounds like VZW doesn't want to do that for him so it might be easier to fix it another way.
Can't speak for Verizon itself, but I have been through several SIM cards now on Telstra. Same issue, all of a sudden they are unable to pick up signal at all. Seems the pre-paid cards are more susceptible.
I'd ask for a replacement SIM, as opposed to a replacement phone as it's been proved the issue exists on multiple handsets already. If a new SIM doesn't alleviate the issue, the VZW rep may be right in that it is at the account level.
Good luck!

[Q] Unlocked Telus One S Constantly Disconnects on MTS network

I bought my One S from Telus through a friend who's a Telus customer this past June and used an unlock code bought online to use it with my carrier (MTS). After setting it up with the MTS APN settings it worked perfectly for several months. Then around 2 or so months ago, I got an OTA update to 4.0.3 and as soon as I got the update, the phone started regularly dropping the connection to the network. Signal strength wasn't an issue, it would just cut out completely, giving the message about emergency service only. Some days it wouldn't be too bad and would just cut out momentarily and sometimes it would drop for a good time or drop so repeatedly as to make the phone unable to even dial out. It would sometimes even vary in severity throughout the day. I haven't rooted or unlocked the phone in any way except for a carrier unlock code.
As I was very busy with school, I gritted my teeth and beared it but it seemed to get progressively worse to the point where I finally sat down to seriously look into, and got on the phone with MTS tech support, HTC tech support, as well as trying to talk to MTS sales reps at their store locations. MTS is clueless on what to do (or just refuses to help) because they don't sell the One S. I talked to HTC three times and their only solution was to see what happens with sim cards from different phones and they also noted that the stock software, as well as updates, are tied to the carrier and could be causing problems.
MTS also talked me into buying a new sim card and seeing if that fixes the issue, where it actually made things worse somehow and now the phone often cannot get a connection at all or drops it and doesnt pick it back up (on the settings screen, "mobile data" gets stuck at "turning on" but even voice doesn't work). I've tried getting other people's sims to try in my phone but they all seem to have ones of different sizes. All I've been able to try is a Rogers sim (which I only could test for a short time, but seemed to stay connected and stable for that time) and a Telus sim (which wouldn't work at all, strangely enough. Though one person I talked to at HTC said that by unlocking my phone its possible I received the OTA update from a different carrier such as Rogers).
I'm not sure what to do here as I've tried messing with many settings and searching for solutions without finding one that works. One of the HTC reps I talked to said that I could either send it in (and lose the phone for 2-3 weeks without a guarantee this wouldn't happen again) or while they can't recommend it, I could try rooting the phone and downgrading the software to what it was before. A guy I talked to at a local cell repair shop listened to my problem for about a minute and a half and then said rooting would fix it.
If anyone has any suggestions, I would greatly appreciate hearing them. I'd like to get some more input before I void the warranty by trying to root it and replace the software with some in case that doesn't fix it and I have to send it into HTC for a big fee.

Antena Problems?

Hello! Tonight, it appears that there's something up with my phone. It informs me that I can only make emergency calls and I can't make calls nor send texts either even though its showing me five signal bars. I have to reboot into safe mode then back out again in order to get it fully functioning without hiccups.
I've searched around for a couple of hours and saw that people are reporting some hardware fault. Although they also said that their phone was unable to search for available network operators in their area. Unlike theirs, mine is able to search for available network operators.
Is it possible that the charger I'm using is causing problems? I'm using my dad's Zenfone 2 charger brick with my original samsung cable. I've ordered an Aukey quick charger though.
Is it also possible that the phone's gotten quite hot that it's already messing and needs to cool down? I've flashed a bunch of times since I was trying on some of my mods.
My phone's a K variant and it's been rooted for quite some time so that's not the case. I've also tried inserting my sim card in a different phone and it seems that my sim card's not the problem as well. I hope my phone's just having a bad evening lol.
Any ideas on this?
The Android Manual said:
Hello! Tonight, it appears that there's something up with my phone. It informs me that I can only make emergency calls and I can't make calls nor send texts either even though its showing me five signal bars. I have to reboot into safe mode then back out again in order to get it fully functioning without hiccups.
I've searched around for a couple of hours and saw that people are reporting some hardware fault. Although they also said that their phone was unable to search for available network operators in their area. Unlike theirs, mine is able to search for available network operators.
Is it possible that the charger I'm using is causing problems? I'm using my dad's Zenfone 2 charger brick with my original samsung cable. I've ordered an Aukey quick charger though.
Is it also possible that the phone's gotten quite hot that it's already messing and needs to cool down? I've flashed a bunch of times since I was trying on some of my mods.
My phone's a K variant and it's been rooted for quite some time so that's not the case. I've also tried inserting my sim card in a different phone and it seems that my sim card's not the problem as well. I hope my phone's just having a bad evening lol.
Any ideas on this?
Click to expand...
Click to collapse
The only thing I can think of outside reinstalling roms and what not is to flash a newer modem only, on the handset. I honestly can't comment on if the charger could be the issue
It sounds like a software issue, not hardware, as you can get it working. I'd flash your latest stock, then factory reset and see what happens.
Sent from my SM-G920W8 using Tapatalk

OnePlus One and Samsung Galaxy S7 loses reception randomly

Hi,
I initially started with a OnePlus One and it came to a point where I would lose reception (Both data and mobile) maybe once an hour. The only fix was to restart the phone. I got fed up with it so I ended up getting a new phone, the Samsung Galaxy S7. It's been 3 days and I haven't found any problems, however, this morning I found my phone to have no reception. I restarted it and it started working again.
Could this be a SIM card problem? WiFi works fine.
Thanks
Not sure about the OPO but i had this happen to me where i lost reception for no more than 30s.
For you to restart the phone to get a reception is news to me and honestly have no idea.
I don't know how easy it is for you but with my operator it is very easy to just pick up a new sim card and ether have the shop to register the new card or do it by myself online. If the card is the same as the one you used with the OPO a new card would be the first thing to test. I have heard of lost reception problems were a sim card has been the culprit.
TastyBiscuit said:
Hi,
I initially started with a OnePlus One and it came to a point where I would lose reception (Both data and mobile) maybe once an hour. The only fix was to restart the phone. I got fed up with it so I ended up getting a new phone, the Samsung Galaxy S7. It's been 3 days and I haven't found any problems, however, this morning I found my phone to have no reception. I restarted it and it started working again.
Could this be a SIM card problem? WiFi works fine.
Thanks
Click to expand...
Click to collapse
Is it the same SIM card from both phones?
Something has to be the same between them, either the SIM, or if it is a different SIM, then your location / surroundings / interference
*Detection* said:
Is it the same SIM card from both phones?
Something has to be the same between them, either the SIM, or if it is a different SIM, then your location / surroundings / interference
Click to expand...
Click to collapse
Same SIM card. My location and surroundings don't affect when I lose reception. It just seems to be random. Both me and my girlfriend have the same carrier (Kodoo). I'd be sitting by my desk for a couple hours and have full bars and suddenly lose reception. Then restart my phone and I get reception back.
TastyBiscuit said:
Same SIM card. My location and surroundings don't affect when I lose reception. It just seems to be random. Both me and my girlfriend have the same carrier (Kodoo). I'd be sitting by my desk for a couple hours and have full bars and suddenly lose reception. Then restart my phone and I get reception back.
Click to expand...
Click to collapse
I'd request a SIM replacement, see if that fixes it, unlikely to be the phone if you have two with the same problem using the same SIM

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