[FIX] PSA: SIM CARD/Data & WIFI not working, because of which phone reboots or enters crash dump mode - OnePlus 6 Guides, News, & Discussion

PSA:
THIS IS NOT A SOFTWARE ISSUE.
So no need to wipe/ reset your phone or msm flash. NO NEED.
It is related to hardware.
There is a really easy fix for this and it might seem stupid but its worked for me a lot of other people according to my research.
So when you come across this, all you need to do is press your phone on the back side in various places (i dont know where exactly) and then sim card and wifi both should start working.
I dont know why or how this happens, but it just works. it worked for me, after 2 days of trying to resolve this issue with various software solutions, went as far are copying the persist partition from another oneplus 6 and flashing it on mine.
so yes this works

Related

wifi problems laggy, crashing

hi all.
As I mentioned in my other post I have been having some serious wifi problems. Basically if I leave the wifi off the phone seems to work fine. When I turn it on however, the phone becomes laggy and it does not work. After turning the wifi on from the settings page, it says it is scanning for networks. After 20-30 seconds a little bubble pops up and says "unable to scan for networks" it will continue to try and scan on and off but never is successful. The phone is better to start up with the wifi off because if on, the phone becomes almost unresponsive and I am assuming it is because it is trying to scan in the background.
I just rebooted into the recovery menu and wiped the cache and device, but no luck. Any other ideas as to why this is happening?
Little update:
I found a few other threads where people complained about the same problem. Their recommended fix involved removing the file "/data/wifi/bcm_supp.conf"
The full thread is here: http://androidforums.com/samsung-moment/46179-unable-scan-networks.html
I tried that and also did a factory reset but unfortunately have not been able to fix the problem. Does anyone else have any other ideas?
hi Scales11
I'm also having the same problem..
did the
1. factory reset
2. new ROMs - Darky 7.01, Cognition 2.3...
3. delete the /data/wifi/bcm_supp.conf file
and still no luck... and realised bluetooth isn't working either..
anyone?? please help?
If you have flashed other ROMs and still the same issue. I would say its a hardware issue.
my fix
Geekboy9:
I meddled it for hours and while others have found various odd reset/rom fixes, I concluded that it was a hardware issue which cannot be fixed.
I flashed it back to a stock rom and went to att. They agreed that it didnt have any water damage and gave me a number to call about getting a replacement. Since the phone was less than a year old and its failure was not due to my use, the replaced it with a refurb. All in all the refurb seems fine, even after I rooted and flashed the cognition rom. I would recommend you do the same.

*desperate* sudden Airplane Mode lock / zero radio

N5 purchased direct from Google in early spring, has been used as daily driver since then with little issue. In official hard silicon case since day 1.
stock 4.4.4, unlocked + root. Rather innocuous app list (TiBU, F-Droid / AdAway, etc)
Recently after a reset to attempt ridding of some minor issue (funky reception or something), upon finishing boot, phone didn't ask for SIM pin, as always prior.
Quickly revealed because phone does not even detect SIM. Different SIM from another carrier attempted. No difference. Original SIM also attempted in a different N5, still works. So problem appears to be with phone.
Nothing of note to precipitate this happening. Power menu shows Airplane mode is ON, but cannot be toggled. Quick Settings Airplane Mode can be toggled on and off and icon does change (so sometimes contrasting what power menu reports), but SIM never detected / activated / used, ZERO radio available. Attempts to make calls say "first disable Airplane mode". Many attempted combinations of SIM in / out, Airplane Mode in quicksettings toggled, resets, etc. No dice.
Everything else works with the phone, this came on suddenly.
Tried reflashing same radio. No dice. Tried flashing 4.4.3 radio. No dice. Tried factory reset and also re-flashing entire phone to 4.4.4. No dice.
After all that I am led to believe this must be a hardware issue, but I wanted to know if you guys had any suggestions before forced to send back in to Google.
Googling reveals some other instances of this happening to people, but no real solutions provided. Why would the hardware suddenly just die, and why would it present itself the way it does?
Side note, if it DOES go back to Google, does anyone know how to avoid getting refurb in return? That is all they are offering and will not budge. Yet less than a year ago I had to replace an N4, and received a new replacement, without even making a particular request for it.
Sounds like your radio hardware has gone bad you have done everything to troubleshoot software issues RMA it to google
Sent from my Nexus 5 using Tapatalk

Wifi / Bluetooth / Sim Card Issues Since Last Two OTA Updates

I received an OTA Update in early to mid May. I am now forgetting which version I received at that time. ( I forget as I have done so many downgrades/upgrades/factory resets in my troubleshooting the last month!) Up until these issues, I've never rooted or flashed a ROM, or unlocked boot loader or anything. My N5 had always been completely stock.
First Issue
It all started with just the sim card. I get "no sim card" message, even though it was in there. This was my original SIM card and I had never ejected it since I bought it new. I found I could turn it off, pop it out and back in, and boot it again. Sometimes it will see the sim card again. It may take 20 times, but finally work.
I naturally got a new sim card, as well as confirmed said sim cards worked in other phones. My wifi and bluetooth were working fine at first. Working with google support, they recommended a factory reset to fix the sim card issue. Immediately after the factory reset, my bluetooth would no longer turn on nor show a MAC address. At this point, my wifi was fine.
Second Issue
In addition to the sim card slot issue, now my Bluetooth no longer works! Around this time, I received another OTA update, this time it was 5.1.1 LMY48B. I had hoped it would fix the issues, but no dice! I start reading up on the XDA forums as I am determined to start rolling back to see if this will fix anything. I unlocked the boot loaded, rooted, etc following the threads on XDA
Third Issue
I do all sorts of flashing to hammerhead-krt16m_4.4 to hammerhead-ktu84p_4.4.4 to hammerhead-lrx21o_5.0 to hammerhead-lmy48b_5.1.1 . On the final flash back to 5.1.1 my wifi now no longer works!!!!!!!!!!! It is stuck at wifi turning on and no MAC address shows. It also seems my cell data is very very slow now!
After many calls to google, I think I finally succeeded in getting a “ticket routed up”. My phone is from the play store around 10/31/2013. They keep pushing I am out of warranty. I attempt to ask for a refurb N5 without luck so far. I am not very confident anything will come from google. This being my only handset now, it is just not an option to send this to LG. My current state is my voice/txt and cell data are working. Data seems a little slow but usable. Wifi and bluetooth won't turn on. I also still have the sim car slot issue upon rebooting. After a bunch of reboots it will eventually see sim card.
What else can I try? Is there a better way to attempt to repair/reload my radio drivers? Perhaps there is corruption of sorts? I have not tried a custom ROM or radio or kernel…… I did take to a local tech. They looked at everything literally under a microscope and did not see any issues that way. I am in the USA and have a lgd820. Although we are quick to assume a hardware issue, I am wondering if there is some sort of incompatibility with the first run of N5 and lollipop….. who knows!
I’ve read all sorts of threads on the internet. It seems I am not the only one. We are very quick to assume it must be a bad motherboard, it just seems too coincidental to me!
Here is a collection of threads……
Within the N5 Sub
http://www.reddit.com/r/Nexus5/comments/2g0i3m/no_wifi_or_bluetooth/
http://www.reddit.com/r/Nexus5/comments/253y8d/my_nexus_wont_activate_wifi_and_bluetooth/
http://www.reddit.com/r/Nexus5/comments/2pur0v/wifi_stuck_on_turning_on_mac_and_ip_addresses/
http://www.reddit.com/r/Nexus5/comments/361ecw/help_wifi_and_bluetooth_stopped_working/
http://www.reddit.com/r/Nexus5/comments/2h4co7/wifi_wont_turn_on/
http://www.reddit.com/r/Nexus5/comments/2hpj2w/can_no_longer_connect_to_wifi_stuck_at_wifi/
http://www.reddit.com/r/Nexus5/comments/2wjk38/wifibluetooth_issues/
http://www.reddit.com/r/Nexus5/comments/2zboet/no_wifi_no_bluetooth_and_reboots_whenever_i_press/
Other Links
http://forum.xda-developers.com/google-nexus-5/help/wifi-stuck-t2721643
http://forum.xda-developers.com/google-nexus-5/help/bluetooth-t2733672
https://productforums.google.com/forum/#!topic/nexus/IJSOuc7gw0w;context-place=forum/nexus
https://productforums.google.com/fo...otification#!category-topic/nexus/1H6ZiIMYrtw
https://productforums.google.com/forum/#!topic/nexus/ke-OEPLbRSQ
https://productforums.google.com/fo...xus/lollipop|sort:relevance/nexus/NbO-AGvRCLk
http://code.google.com/p/android/issues/detail?id=80028
I found this, but not really sure it’s the same thing….. http://forum.xda-developers.com/showpost.php?p=52441901&postcount=47
Prodeje79 said:
I found this, but not really sure it’s the same thing….. http://forum.xda-developers.com/showpost.php?p=52441901&postcount=47
Click to expand...
Click to collapse
Hi,
This link was actually what i was going to suggest. It seems you've tried pretty much everything in the book except that.
I think its worth a try. Same as any other learning process, take your time and read the whole thing once or twice until you feel comfortable with the process. Then go for it.
Darn it, I should have downloaded those programs BEFORE rooting my phone again. Now I a struggloing to get my SIM card detected again to get data to DL them! whooops!
How would I go about attempting to read my files first to see if they are accessible and potentially write down my old MACs first?
EDIT: I found this but not sure how to get that working? I have Windows 7 and CMD prompt at this point. what program is that using?
https://www.reddit.com/r/Nexus5/comments/2j6vao/how_to_changefix_your_wifi_mac_address/
beekay201 said:
Hi,
This link was actually what i was going to suggest. It seems you've tried pretty much everything in the book except that.
I think its worth a try. Same as any other learning process, take your time and read the whole thing once or twice until you feel comfortable with the process. Then go for it.
Click to expand...
Click to collapse
OK, I went through those steps. everything appeared to go through correctly. Still no wifi nor bluetooth
EDIT: I rebooted a second time. WHen it first boot up, wifi was on and connected to my works AP. I quickly went in and snagged a screen shot of MAC address. Oddly enough, it did not match what I had input via hex editor. Within a few moments the wifi stopped working. It is back to the turning wifi on issue..... bluetooth still not working as well.
Very interesting.....
EDIT2: I get access denied when attempting to read either files within their corresponding folders under persist.
I was able to copy my stock files into my sdcard download folder and read them there without issue. Thus seeing my default addresses for both!
Perhaps it is normal, but I am never able to edit the old or new files under persist. I basically renamed original folders to bluetoothold and wifiold. I could delete them perhaps.
Note that I put my phone into airplane mode before doing anything noted in the steps.
Any other ideas? Given that it is showing my original MAC address the one time it worked, this makes me think that it is not reading the files .macaddr at all
I have the same problem. Funny thing is, the phone is just over 2 years old and the motherboard was replaced just 9 months ago (so, brand new one).
In my case, I received and Android update 2 days before I found the phone burning hot and restarting on it's own. Then the same chain of events you describe started to unleash. Now I can't be sure if this is software related, hardware related or both.
Can't seem to find a solution to the issue either.
Prodeje79 said:
I received an OTA Update in early to mid May. I am now forgetting which version I received at that time. ( I forget as I have done so many downgrades/upgrades/factory resets in my troubleshooting the last month!) Up until these issues, I've never rooted or flashed a ROM, or unlocked boot loader or anything. My N5 had always been completely stock.
First Issue
It all started with just the sim card. I get "no sim card" message, even though it was in there. This was my original SIM card and I had never ejected it since I bought it new. I found I could turn it off, pop it out and back in, and boot it again. Sometimes it will see the sim card again. It may take 20 times, but finally work.
I naturally got a new sim card, as well as confirmed said sim cards worked in other phones. My wifi and bluetooth were working fine at first. Working with google support, they recommended a factory reset to fix the sim card issue. Immediately after the factory reset, my bluetooth would no longer turn on nor show a MAC address. At this point, my wifi was fine.
Second Issue
In addition to the sim card slot issue, now my Bluetooth no longer works! Around this time, I received another OTA update, this time it was 5.1.1 LMY48B. I had hoped it would fix the issues, but no dice! I start reading up on the XDA forums as I am determined to start rolling back to see if this will fix anything. I unlocked the boot loaded, rooted, etc following the threads on XDA
Third Issue
I do all sorts of flashing to hammerhead-krt16m_4.4 to hammerhead-ktu84p_4.4.4 to hammerhead-lrx21o_5.0 to hammerhead-lmy48b_5.1.1 . On the final flash back to 5.1.1 my wifi now no longer works!!!!!!!!!!! It is stuck at wifi turning on and no MAC address shows. It also seems my cell data is very very slow now!
After many calls to google, I think I finally succeeded in getting a “ticket routed up”. My phone is from the play store around 10/31/2013. They keep pushing I am out of warranty. I attempt to ask for a refurb N5 without luck so far. I am not very confident anything will come from google. This being my only handset now, it is just not an option to send this to LG. My current state is my voice/txt and cell data are working. Data seems a little slow but usable. Wifi and bluetooth won't turn on. I also still have the sim car slot issue upon rebooting. After a bunch of reboots it will eventually see sim card.
What else can I try? Is there a better way to attempt to repair/reload my radio drivers? Perhaps there is corruption of sorts? I have not tried a custom ROM or radio or kernel…… I did take to a local tech. They looked at everything literally under a microscope and did not see any issues that way. I am in the USA and have a lgd820. Although we are quick to assume a hardware issue, I am wondering if there is some sort of incompatibility with the first run of N5 and lollipop….. who knows!
I’ve read all sorts of threads on the internet. It seems I am not the only one. We are very quick to assume it must be a bad motherboard, it just seems too coincidental to me!
Here is a collection of threads……
Within the N5 Sub
http://www.reddit.com/r/Nexus5/comments/2g0i3m/no_wifi_or_bluetooth/
http://www.reddit.com/r/Nexus5/comments/253y8d/my_nexus_wont_activate_wifi_and_bluetooth/
http://www.reddit.com/r/Nexus5/comments/2pur0v/wifi_stuck_on_turning_on_mac_and_ip_addresses/
http://www.reddit.com/r/Nexus5/comments/361ecw/help_wifi_and_bluetooth_stopped_working/
http://www.reddit.com/r/Nexus5/comments/2h4co7/wifi_wont_turn_on/
http://www.reddit.com/r/Nexus5/comments/2hpj2w/can_no_longer_connect_to_wifi_stuck_at_wifi/
http://www.reddit.com/r/Nexus5/comments/2wjk38/wifibluetooth_issues/
http://www.reddit.com/r/Nexus5/comments/2zboet/no_wifi_no_bluetooth_and_reboots_whenever_i_press/
Other Links
http://forum.xda-developers.com/google-nexus-5/help/wifi-stuck-t2721643
http://forum.xda-developers.com/google-nexus-5/help/bluetooth-t2733672
https://productforums.google.com/forum/#!topic/nexus/IJSOuc7gw0w;context-place=forum/nexus
https://productforums.google.com/fo...otification#!category-topic/nexus/1H6ZiIMYrtw
https://productforums.google.com/forum/#!topic/nexus/ke-OEPLbRSQ
https://productforums.google.com/fo...xus/lollipop|sort:relevance/nexus/NbO-AGvRCLk
http://code.google.com/p/android/issues/detail?id=80028
I found this, but not really sure it’s the same thing….. http://forum.xda-developers.com/showpost.php?p=52441901&postcount=47
Click to expand...
Click to collapse
+1
I'm facing the same issues and I tried all the possible steps I could find on internet trying to repair the problem.
Actually, since the latest updates I was encountering some issues with the WiFi only: not turning on either off and not showing properly the MAC addres. So I decided to factory reset, even SDcard and since yesterday I have tried all the possibile guide I found to internet to fix the MAC address not showing and the WiFi not turning on/off but nothing worked. I tried even to flash again the old factory images, such as KitKat, Lollipop, etc., to lock the bootloader again and to dismantle the phone in order to clean the motherboard, but nothing worked. Phone still gives me MAC address 02:00:00:00:00:00 alternatively with the correct one, I can't figure out on what it depends because sometime it seems to work: it shows the correct MAC, it connects to wifi network; suddenly it doesn't!
I'm really going crazy to understand what's wrong.
You'll have to dig up my final posts on this , but in a nutshell, send into LG for repair, select cheapest option they offer. Receive mint phone. My cost was $45 and about one month... I picked up a cheap $20 phone to get me by.
In other news.... I now have a 6p!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Renton91 said:
+1
I'm facing the same issues and I tried all the possible steps I could find on internet trying to repair the problem.
Actually, since the latest updates I was encountering some issues with the WiFi only: not turning on either off and not showing properly the MAC addres. So I decided to factory reset, even SDcard and since yesterday I have tried all the possibile guide I found to internet to fix the MAC address not showing and the WiFi not turning on/off but nothing worked. I tried even to flash again the old factory images, such as KitKat, Lollipop, etc., to lock the bootloader again and to dismantle the phone in order to clean the motherboard, but nothing worked. Phone still gives me MAC address 02:00:00:00:00:00 alternatively with the correct one, I can't figure out on what it depends because sometime it seems to work: it shows the correct MAC, it connects to wifi network; suddenly it doesn't!
I'm really going crazy to understand what's wrong.
Click to expand...
Click to collapse

J7 (MetroPCS 2015) Wi-Fi, Bluetooth, and Hotspot: All Not Working

Hi. New to the forum, hoping to resolve this issue that's been plaguing this phone for months. The phone is not allowing connections to Wi-Fi, Bluetooth, or hotspot (all both ways, to and from. Won't connect to another hotspot, won't allow others to connect to it's hotspot). What's truly strange is that all will work randomly, then quit again. But it works maybe 1% of the time. This makes me believe it's not a hardware issue, but it's not proof. And other times, it will work (Wi-Fi for example) and within a few minutes it will shut itself off. Same has happened with Bluetooth. I doubt it matters, but this phone is unlocked and currently using the T-Mobile network. I'm positive I've isolated the issues to this phone. I have done weeks worth of research online, and tried everything I know to fix it myself to no avail. My skill level is moderate to noob-ish, I know plenty more than the old folks, but would bet my house I'd brick a phone trying to root it.
What I've done already (thanks to countless bits of info by Google searching):
*Have powered off/on the phone many times
*Have factory reset the phone
*Have done a "master reset"
*Have wiped the system cache partition in the boot menu
*Have booted in safe mode, problems still persist
*Have gone to system apps>device maintenance>storage>clear data
*Have gone to system apps>wifi direct>storage>clear data
Fwiw, I've had nothing but problems ever since I installed the FB messenger app (only installed briefly to place an ad), but I deleted it ages ago and will never install it again. Can't be 100% certain whether or not the issues started before or after the install, or whether it's related at all. I really like this phone and don't want to give up on it, but I'm not willing to take it somewhere and spend hundreds fixing it either. I really appreciate anyone who takes time to read and offer help. Thanks in advance!
Bump. Can anyone offer help or advice?

Question IMEI / fingerprint problems... Any fix?

So today I'm doing the usual flashing of new roms to try them out and I run into a problem. During device setup, Google Fi fails to activate giving error code B042, and also errors out when it's time to register my fingerprint. Didn't think much of it at first, but now I've tried everything I can think of with no luck. Eventually I notice both IMEIs are listed as all zeros. I've wiped data multiple times, reflashed many factory and custom rom versions both with Android flash tool and manually, and always get the same issue with Fi activation and fingerprint scanner not working. I talked with Google techs and they just tell me to take it to Best Buy where it was purchased. I'm thinking a partition must have corrupted or something that doesn't restore during a typical reflash. Can anyone comment on what's going on, and if there's a way to go about fixing it myself. I do have both IMEIs listed on the box if there's a way to go about restoring them, but I doubt that would do anything with the fingerprint problem if even possible. Any insight would be greatly appreciated. Been on these forums for a decade and this may be my first time posting since I've always been able to work through problems myself, but I'm totally stuck on this one. Oh and the Pixel 7 pro I just bought to mess around with root and roms as a second phone, and my main S22u is still working fine, so not exactly an emergency or anything. Thanks in advance.
oncestruck said:
So today I'm doing the usual flashing of new roms to try them out and I run into a problem. During device setup, Google Fi fails to activate giving error code B042, and also errors out when it's time to register my fingerprint. Didn't think much of it at first, but now I've tried everything I can think of with no luck. Eventually I notice both IMEIs are listed as all zeros. I've wiped data multiple times, reflashed many factory and custom rom versions both with Android flash tool and manually, and always get the same issue with Fi activation and fingerprint scanner not working. I talked with Google techs and they just tell me to take it to Best Buy where it was purchased. I'm thinking a partition must have corrupted or something that doesn't restore during a typical reflash. Can anyone comment on what's going on, and if there's a way to go about fixing it myself. I do have both IMEIs listed on the box if there's a way to go about restoring them, but I doubt that would do anything with the fingerprint problem if even possible. Any insight would be greatly appreciated. Been on these forums for a decade and this may be my first time posting since I've always been able to work through problems myself, but I'm totally stuck on this one. Oh and the Pixel 7 pro I just bought to mess around with root and roms as a second phone, and my main S22u is still working fine, so not exactly an emergency or anything. Thanks in advance.
Click to expand...
Click to collapse
Sounds like your EFS partition got corrupted...
I haven't done anything with my P7P, it's stock, so can't offer any advice other than a google search to get you started... here
If the mod will erase it not state it. You mess with that you are on your own? Broke the op as well. Just delete it.

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