Database Info

PREPARING SIM .. nothing after that.. no signal

this is how it goes, i received a att htc one x from some of xda only..
he said that the phone is already unlocked and he was using it on tmobile..
i'M from india.. AND I'M SERIOUSLY F*CKED UP RIGHT NOW ..
MY PHONE HAS NO SIGNALS.. IT ALWAYS SAYS "PREPARING SIM WHEN I TOGGLE AIRPLANE MODE" BUT NOTHING AFTER THAT .. NO SIGNALS//
ANY ANY KIND OF HELP IS APPRICIATED .. PLEASE PLEASE PLEASE HELP

Did you tried a new sim card?
Also there's a trick to add some regular office tape to the back of the sim card to try to make it thicker thus making the sim have better contacts with the phone.
Sent from my HTC One X

i tried my friend's sim card in my phone .. he also owns a htc one x.. but it didn't work//
my sim was working in his phone .. i tried his sim tray in my phone too.. but that didn't work as well//
can you point me to a direction about the tape thing?

sanchitgrover said:
i tried my friend's sim card in my phone .. he also owns a htc one x.. but it didn't work//
my sim was working in his phone .. i tried his sim tray in my phone too.. but that didn't work as well//
can you point me to a direction about the tape thing?
Click to expand...
Click to collapse
just add a couple of layers of scotch or packing tape to the back. something light. dont use anything like duct tape

Are you sure its SIM unlocked?
There is SIM unlocking and boot loader unlocking.
They are different. You want SIM unlocked.
You can buy a SIM unlock code from websites.
Sent from my HTC One X using Tapatalk 2

drklazarus26 said:
just add a couple of layers of scotch or packing tape to the back. something light. dont use anything like duct tape
Click to expand...
Click to collapse
i added 2 layers of tape on my sim .. though it is the cello tape .. transparent one//
but NO, NO SIGNALS at all.. should i add more layers?
AND YES MY PHONE IS SIM UNLOCKED.. IT DOESN'T ASK FOR ANY CODE WHEN I INSERT MY VODAFONE SIM..
how come the real owner of the phone says it is working for him and not for me ?

can the update to 1.85 help?

it does tranfer my sim contacts to phone ..

factory reset. and/or try new RUU. doesn't work still = damage to the sim reader pins OR your micro sim is damaged. check apn settings too

my phone does read my sim , because it has transfered my sim contacts to the phone ..
i think there is some problem with the radio.. i'm going to update it to the latest ruu first ..
my interenet is sucking like hell right now :'(

hi guys how did you fix this problem as i'm experiencing the same problem....

Haris Mahmood said:
hi guys how did you fix this problem as i'm experiencing the same problem....
Click to expand...
Click to collapse
Digging up a thread that is almost a year and a half old and just saying "I have the same problem" without any specifics is not the right way to post a problem.
Is your phone modded (bootloader unlocked, custom ROM, etc.)?
What are you bootloader details?
Stock ROM or custom? If custom, which one?
Did you flash anything recently? What was it?
Did the issue arise after flashing something new, or just started on its own?
Also, a solution was already posted several times on this thread. Did even bother to read the thread, and try the fix?

redpoint73 said:
Digging up a thread that is almost a year and a half old and just saying "I have the same problem" without any specifics is not the right way to post a problem.
Is your phone modded (bootloader unlocked, custom ROM, etc.)?
What are you bootloader details?
Stock ROM or custom? If custom, which one?
Did you flash anything recently? What was it?
Did the issue arise after flashing something new, or just started on its own?
Also, a solution was already posted several times on this thread. Did even bother to read the thread, and try the fix?
Click to expand...
Click to collapse
yes i DID bother to read this thread,
I have tried a different sim
My phone is a HTC ONE M7 with unlocked boot loader and S-OFF
i'm using a Viper 2.60 rom
i haven't flashed anything new...

Haris Mahmood said:
yes i DID bother to read this thread,
I have tried a different sim
My phone is a HTC ONE M7 with unlocked boot loader and S-OFF
i'm using a Viper 2.60 rom
i haven't flashed anything new...
Click to expand...
Click to collapse
Well, did you try to put tape on the SIM, as suggested multiple times on the thread?
Also, if you tried something, and it didn't work, than you need to state that when asking for help.
And dude, you aren't even in the right forum section. This is for the One X/XL, not the One.

redpoint73 said:
Well, did you try to put tape on the SIM, as suggested multiple times on the thread?
Also, if you tried something, and it didn't work, than you need to state that when asking for help.
And dude, you aren't even in the right forum section. This is for the One X/XL, not the One.
Click to expand...
Click to collapse
The problem in my case was RADIO. I flashed a new radio and it worked perfectly after that.

Limited Service Error - HTC Amaze
sanchitgrover said:
The problem in my case was RADIO. I flashed a new radio and it worked perfectly after that.
Click to expand...
Click to collapse
Hi,
I'm facing this issue, i'm not sure how to flash a new radiio in my device. Could you please detailed steps to flash new radio?
Thanks

ramrajkandasamy said:
I'm facing this issue, i'm not sure how to flash a new radiio in my device. Could you please detailed steps to flash new radio?
Click to expand...
Click to collapse
This forum section is for the HTC One X/XL (code name EVITA). We can't help you with the Amaze.

sanchitgrover said:
The problem in my case was RADIO. I flashed a new radio and it worked perfectly after that.
Click to expand...
Click to collapse
Hi, I just achieved s-off and flashed a BM Nandroid but I still get no signal... the phone reads my simcard and contacts.
How did you know which RADIO to flash?

finxster said:
Hi, I just achieved s-off and flashed a BM Nandroid but I still get no signal... the phone reads my simcard and contacts.
How did you know which RADIO to flash?
Click to expand...
Click to collapse
It doesn't matter which radio you flash, as long as it's an Evita radio it's compatible. You've possibly got a hardware problem. Have you tried running an RUU?
Transmitted via Bacon

wifi/no signal
if you r on latest firmware 5.18 and you facing same issue try flashing Telstra_5.06.841.1_Radio
and pls reply with results....

[Q] - CM10 EDGE Only

Hey Guys! I recently picked up the HOX after three solid years on the Captivate. The rooting/flashing experience has been more difficult thus far but the device is pretty friggin' sweet. I unlocked and rooted with minimal issues and went to the latest CM10 nightly out of the gate. No issues were encountered at least during boot up. Once up and running however, the only network available is EDGE. I searched around and found posts in other device forums stating this is due to corrupt/missing IMEI. Did not see anything about this for the dual core HOX. I checked the ATT APN details and they matched what people were posting around. The IMEI is correct in the about phone->status info. Available networks shows ATT and US only. If I try to manually select ATT, it states it cannot reach this network at this time. So it appears I am lost at the moment. Should I reflash CM10? or start over at stock? Any feedback would be greatly appreciated.

do you have at&t branded evita? what radio, hboot and base is on your phone?

DvineLord said:
do you have at&t branded evita? what radio, hboot and base is on your phone?
Click to expand...
Click to collapse
Yes, it is AT&T branded. This is the info listed on the bootscreen:
HBOOT - 1.14.0002
RADIO - 0.19as.32.09.11_2
About phone lists the Baseband as: 0.19as.32.09.11_2_10.105.32.25L

radaghast196 said:
Yes, it is AT&T branded. This is the info listed on the bootscreen:
HBOOT - 1.14.0002
RADIO - 0.19as.32.09.11_2
About phone lists the Baseband as: 0.19as.32.09.11_2_10.105.32.25L
Click to expand...
Click to collapse
i have same. i see ups and downs from build to build and rom to rom sometimes specially lately with 4.2.x. usually i toggle airplane mode and it fixes the problem for awhile, but i've never been stuck on edge unless it was a build my phone really didn't like. what gapps are you using? are you using stock kernel? are you s-off?

DvineLord said:
i have same. i see ups and downs from build to build and rom to rom sometimes specially lately with 4.2.x. usually i toggle airplane mode and it fixes the problem for awhile, but i've never been stuck on edge unless it was a build my phone really didn't like. what gapps are you using? are you using stock kernel? are you s-off?
Click to expand...
Click to collapse
I flashed a gapps-jb-20121212-signed version. Stock CM kernel and left it s-on. The instructions I was following did not mention adjusting this, so I left it alone. Would it be a potential starting point you think? I tried the airplane mode after each reboot, but EDGE only sadly. I tried different APNs, but again EDGE only.

radaghast196 said:
I flashed a gapps-jb-20121212-signed version. Stock CM kernel and left it s-on. The instructions I was following did not mention adjusting this, so I left it alone. Would it be a potential starting point you think? I tried the airplane mode after each reboot, but EDGE only sadly. I tried different APNs, but again EDGE only.
Click to expand...
Click to collapse
try gapps-jb-20121130-signed.zip

DvineLord said:
try gapps-jb-20121130-signed.zip
Click to expand...
Click to collapse
Done. Still no joy though. It did take several minutes before it found a network but still living on EDGE.

well, by now i'd say try another rom. or ruu back to stock and see if your phone has issues. or you might need a new sim.

I don't really have a solution for you but you're not alone. I was having a lot of issues with my phone dropping its data or telling me there's not SIM in it.

DvineLord said:
well, by now i'd say try another rom. or ruu back to stock and see if your phone has issues. or you might need a new sim.
Click to expand...
Click to collapse
Understood. I think I'll RUU back to stock. Just to be clear, I came from 2.20 firmware. Do I need to fallback to the same version coming from CM10? Or can I use 1.85?

Found a thread on RUUs, looks like it recommends staying at your version minimum. Grabbed a copy of the 2.20 RUU but my comp won't even run the thing. Locks the joint up before it even prompts for step 1. Bad download maybe?

it takes awhile for ruu to load. i use winxp and don't bog my computer down with crap like "most" people.
those are the download links and md5 sums for 1.85 and 2.20
http://dl3.htc.com/application/htc_onex_att_RUU_1.85.520.3_US.exe 63d903db858667b82b5186456d0039c1
http://dl3.htc.com/application/htc_one_x_RUU_2.20.502.7_att_us_08022012.exe a40cd830e8c57109d140e1e68e2d1328

DvineLord said:
it takes awhile for ruu to load. i use winxp and don't bog my computer down with crap like "most" people.
those are the download links and md5 sums for 1.85 and 2.20
http://dl3.htc.com/application/htc_onex_att_RUU_1.85.520.3_US.exe 63d903db858667b82b5186456d0039c1
http://dl3.htc.com/application/htc_one_x_RUU_2.20.502.7_att_us_08022012.exe a40cd830e8c57109d140e1e68e2d1328
Click to expand...
Click to collapse
Turned out the issue was hard drive space. Dumped a buncha old albums onto an external drive and the RUU completed its run successfully. Sadly there was no change in the issue. The device remains on EDGE and I'm stuck with crummy Sense. Very deflating.

if you have an at&t evita and you are on at&t i think your problem is your sim card.

I'll attempt to get a new sim tomorrow. The office did do a "reset" on the sim but there was no change to the service. I did notice in the boot menu the S/N is different than what is listed on the sticker located on the back of the phone. Is this usually the case? or a sign of a potential conflict?

Tried a couple of different SIM cards at the office and remained on EDGE at all times. Tried the same card in a new HOX and it gained access to the 4G network with alacrity. So issue appears to be device related. Almost as if the ATT network denies the phone access to the HS networks. Possible conflict somewhere?

Constant Switching from 4g/3g/edge

So I have used TMOUS rom for ALONG time and recently decided to switch to use Cyanogen being a fan of it form other platforms.
While on the TMOUS rom I had 4g connectivity in my area about 90% of the time with the occasional drop into 3g here and there. It always displayed a 4g image in the top.
When I switched to Cyanogen that pretty much stoped. It always says 3g and is slow as hell. every once in awhile it will say H+ but not for long. MOST of the time it is constantly switching between 3g/4g/edge then shutting off.
Now im not sure if its a rom problem or not, but its making me want to switch back to a TMOUS rom.
Any suggestions would be great!
Edit: Just for clairification, I am S-On

I have this problem as well. I even ran the ruu back to stock and it is still happening. Please and thank you!

cp101 said:
I have this problem as well. I even ran the ruu back to stock and it is still happening. Please and thank you!
Click to expand...
Click to collapse
Damn, this scares me.... any solution anyone?

I'm thinking it might be a hardware error at this point. I might just "lose my phone" or just flash to stock and return it, this is preposterous.

cp101 said:
I'm thinking it might be a hardware error at this point. I might just "lose my phone" or just flash to stock and return it, this is preposterous.
Click to expand...
Click to collapse
Unfortunately, it doesn't seem to be a hardware problem
I have been trolling the net for weeks but have not found a solution yet.
I've posted in threads here but no solution.....
My issues started when I went to CM ROM - I used to have great 4g all the time before I went to custom rom (I was on stock TMO US) .. Now no matter what I do, I am not able to get 4G again.... it's really irritating...
I've tried a bunch of custom ROMS.. I am on 1.13 HBOOT and S-ON .. .. CID = HTC__001 (originally my CID was stock TMO US CID whatever that is but now its not that.. I don't wan to run RUU because I don't have TMO US CID and dont want to brick my phone)

You can set your CID back easily with the All in One ToolKit found here.http://www.hasoon2000.info/getdownload.php?file=One%20S/One_S_All-In-One_Kit_v4.0.rar
That is not the problem, unfortunately. It just doesn't make much sense, whatever the problem is; and especially considering after a full RUU restock. That has always fixed whatever mess I have created in the past.

This rom should fix your problem. Dont forget to clear storage from bootloader. It will erase everything thoug. And follow the steps under show contents link.
http://forum.xda-developers.com/showthread.php?t=2250573

cp101 said:
You can set your CID back easily with the All in One ToolKit found here.http://www.hasoon2000.info/getdownload.php?file=One%20S/One_S_All-In-One_Kit_v4.0.rar
That is not the problem, unfortunately. It just doesn't make much sense, whatever the problem is; and especially considering after a full RUU restock. That has always fixed whatever mess I have created in the past.
Click to expand...
Click to collapse
I not sure if its a CID problem. The only thing I ever did was upgrade to the newest Hboot and load in the CM rom. even going back to the TMOUS rom does not fix the problem.
Its so bad, and never on 4g that im considering getting a new phone.

bnd10706 said:
I not sure if its a CID problem. The only thing I ever did was upgrade to the newest Hboot and load in the CM rom. even going back to the TMOUS rom does not fix the problem.
Its so bad, and never on 4g that im considering getting a new phone.
Click to expand...
Click to collapse
I'm in the same boat, friend. I've tried literally everything suggested, I'm just wondering what exactly happened in the flashing of the Maximus rom. The worst part being is that I GET 3g/H and then it drops back to E. It's so strange. The only thing I've not done is contact Tmobile about it, and i highly doubt that they would throttle my bandwidth without contacting me in some form or fashion.

cp101 said:
I'm in the same boat, friend. I've tried literally everything suggested, I'm just wondering what exactly happened in the flashing of the Maximus rom. The worst part being is that I GET 3g/H and then it drops back to E. It's so strange. The only thing I've not done is contact Tmobile about it, and i highly doubt that they would throttle my bandwidth without contacting me in some form or fashion.
Click to expand...
Click to collapse
my phone is still under warrenty. Im wondering if i am able to revert back to stock without them knowing if I can get a phone replacement.

From what I've read, it's doable; even with an unlocked phone. But I'd really like to know what in the dev's source code made this happen... it's a bit ridiculous.

jenenser83 said:
This rom should fix your problem. Dont forget to clear storage from bootloader. It will erase everything thoug. And follow the steps under show contents link.
http://forum.xda-developers.com/showthread.php?t=2250573
Click to expand...
Click to collapse
I just wanted to say, that I did this and it worked!
I did this the first time, but i just flashed the rom with a full wipe.
This time what I did was go into TWRP and erased everything....and I mean everything except TWRP.
After that i flashed the rom and boot.img and everything works great. 4g all the time again!
Sucks that im back on an older version of jellybean, but oh well

bnd10706 said:
I just wanted to say, that I did this and it worked!
I did this the first time, but i just flashed the rom with a full wipe.
This time what I did was go into TWRP and erased everything....and I mean everything except TWRP.
After that i flashed the rom and boot.img and everything works great. 4g all the time again!
Sucks that im back on an older version of jellybean, but oh well
Click to expand...
Click to collapse
Can you take me through the steps you took to achieve all of this? Thanks.

cp101 said:
Can you take me through the steps you took to achieve all of this? Thanks.
Click to expand...
Click to collapse
So what I did first was go into TWRP and selected wipe. Inside wipe i selected EVERYTHING, every little box. Then Wiped it.
This left nothing on the phone but the recovery. I then loaded on SuperSU from TWRP. I download the stock TMOUS rom that was posted earlier in this post.
In TWRP I mounted it and hooked it to computer and transfered the rom over.
Once the rom was on I did the install of the rom.
I rebooted the rom into bootloader.
Once in bootloader i put it into fastboot.
I had previous extracted the boot.img from the rom.
I sent the boot.img over via fastboot which restarted the phone.
Once it got all started up. No issues. I am on 4g 99% of the time now.
Im thinking the issue was definatly based in the CM rom.
Since this worked I wanted to test things out since my phone was pretty much stripped of everything.
I tried out Viper rom and a couple of other non CM based roms, and I have had no issues.
IM back on teh TMOUS rom though. Wifi calling will win over when i go overseas.

Thanks, but it did not work for me. It is a hardware issue on mine. Thanks again

cp101 said:
Thanks, but it did not work for me. It is a hardware issue on mine. Thanks again
Click to expand...
Click to collapse
Must be.
I did find something out though doing all my research. Did you ever at any point update the radio? TMobile uses some frequencies that some companies dont use.
It is my understanding that some of these roms are packed with radios that are generic and thus ment for multi carriers.
Not sure if thats your issue, but might want to look into.
Its nice being back on 4g though.

Radio Trouble

I'm on 2.16 S-Off and SuperCID...
I tried to go back to 2.15 and it seems to have killed my radio. It doesn't hold either a cell signal or a wifi signal, tried multilple radio flashes (1.15, 1.2) with no luck. It connects for a few seconds, then drops even mid call.
I think it's software related because all was well until I decided to go back to hboot 2.15
If anyone can help I'd greatly appreciate it...

What method of flashing did you use exactly?

Dooxed said:
What method of flashing did you use exactly?
Click to expand...
Click to collapse
For the radios I used the sense radio installer v6.
To go back to 2.15, I used a Rogers RUU, then updated to JB

myqj said:
For the radios I used the sense radio installer v6.
To go back to 2.15, I used a Rogers RUU, then updated to JB
Click to expand...
Click to collapse
Have you removed the sim card reboot and reinsert sim card?

tivofool said:
Have you removed the sim card reboot and reinsert sim card?
Click to expand...
Click to collapse
Yup, tried all that, tried going back to stock, tried different radios in stock, tried CM all without luck.
I'm starting to think it may be hardware...

Edit: Hmm, maybe I should read your reply first.. Already tried going back to stock.. then I don't know!
Is the top cap of your One S properly connected? Maybe clean the contacts a bit? All antennas except the WiFis are located at the top.
-----------------
When I was stuck on hboot 2.16 after playing around with some ROMs (I am not sure, but I blame Maximus HD 10) I installed the ICS RUU for Europe, file RUU_Ville_U_ICS_40_S_HTC_Europe_2.31.401.5_Radio_1.06es.50.02.31_10.09a.50.04L_release_275655_signed.exe to be exact.
This took me back to hboot 1.14 (or so), including the old radio / recovery / etc. :good:
If you want to try this, make sure adb or fastboot is working on your PC and connect the phone by USB.
I got the file here (AndroidRUU). If you are in the US or somewhere else another RUU might be better for you.

Verizon M8 3G only FIX

There are very few posts found on any site about this issue so I wanted to post a success.
Symptom: M8 that either from a ROM install or OTA is 'stuck' on 3G. This persists across radio revisions and OS.
In my case, I had a M8 with S-off arrive from Swappa but it was 3g only on 4.4.4 so I took the OTA... No change. Following, I tried 3 different SIM and opened a support case with Verizon. As with the other 2 cases I found reference to in a search, the determination was a fault with the phone and it would be factory replaced under warranty. BUT this phone is S-OFF!... so I kept digging. After trying various RUU from 4.4.3, 4.4.4. and 5.01 NONE of them worked, still trapped in 3G land even with factory reset wiped cache and clean install of 4.4.4 with the Verizon OTA update to 5.01 full path.
Solution: Roll farther back! I found a very early RUU from 4.4.2 and flashed the baseband. Immediately 4g worked. Rolling forward, every firmware version I flashed after (any baseband) also worked. SO if you have a M8 that does only 3G just roll all the way back to release baseband and then back forward to 5.01.. should fix! Verizon also indicated they know of this phone sometimes not 'taking' a SIM so try a 2nd one too.
Regards and good luck,

TekGnosis said:
There are very few posts found on any site about this issue so I wanted to post a success.
Symptom: M8 that either from a ROM install or OTA is 'stuck' on 3G. This persists across radio revisions and OS.
In my case, I had a M8 with S-off arrive from Swappa but it was 3g only on 4.4.4 so I took the OTA... No change. Following, I tried 3 different SIM and opened a support case with Verizon. As with the other 2 cases I found reference to in a search, the determination was a fault with the phone and it would be factory replaced under warranty. BUT this phone is S-OFF!... so I kept digging. After trying various RUU from 4.4.3, 4.4.4. and 5.01 NONE of them worked, still trapped in 3G land even with factory reset wiped cache and clean install of 4.4.4 with the Verizon OTA update to 5.01 full path.
Solution: Roll farther back! I found a very early RUU from 4.4.2 and flashed the baseband. Immediately 4g worked. Rolling forward, every firmware version I flashed after (any baseband) also worked. SO if you have a M8 that does only 3G just roll all the way back to release baseband and then back forward to 5.01.. should fix! Verizon also indicated they know of this phone sometimes not 'taking' a SIM so try a 2nd one too.
Regards and good luck,
Click to expand...
Click to collapse
Thanks for this share. I am having an issue that may or may not be related. I have a feeling that my sim card reader is broken but my phone was actually having a similar symptoms before its radio stopped working altogether. I came back from international roaming today (and a non vzw sim) and when I arrived stateside, my phone would only pick up CDMA evdo 3g. After much fiddling in the *#*#4636#*#* menu, I did not have any luck. Then all of the sudden my phone read "no service" and wouldn't even connect to vzw at all. I tried a new sim from a vzw store, no dice. My plan was to ruu tomorrow as a last resort. I am s-off. Would you mind sharing the 4.2.2 ruu link? I'd like to try.

bacon612 said:
Thanks for this share. I am having an issue that may or may not be related. I have a feeling that my sim card reader is broken but my phone was actually having a similar symptoms before its radio stopped working altogether. I came back from international roaming today (and a non vzw sim) and when I arrived stateside, my phone would only pick up CDMA evdo 3g. After much fiddling in the *#*#4636#*#* menu, I did not have any luck. Then all of the sudden my phone read "no service" and wouldn't even connect to vzw at all. I tried a new sim from a vzw store, no dice. My plan was to ruu tomorrow as a last resort. I am s-off. Would you mind sharing the 4.2.2 ruu link? I'd like to try.
Click to expand...
Click to collapse
I have all of the ruu in one thread which is stickied in the general section.

dottat said:
I have all of the ruu in one thread which is stickied in the general section.
Click to expand...
Click to collapse
Thanks man. U think I can just reflash radio for a fix instead? Hoping for a quicker fix rather than backup> ruu >flash twrp>restore nandroid...

bacon612 said:
Thanks man. U think I can just reflash radio for a fix instead? Hoping for a quicker fix rather than backup> ruu >flash twrp>restore nandroid...
Click to expand...
Click to collapse
The s-on ruu will not wipe. They will not affect s status or unlock status. Flash ruu. Flash twrp. Flash supersu. Ten mins or less.

dottat said:
The s-on ruu will not wipe. They will not affect s status or unlock status. Flash ruu. Flash twrp. Flash supersu. Ten mins or less.
Click to expand...
Click to collapse
But I am s-off running an aosp rom. That matter? I am under the impression that flashing that ruu will take my phone back to the way it came out of a box

bacon612 said:
But I am s-off running an aosp rom. That matter? I am under the impression that flashing that ruu will take my phone back to the way it came out of a box
Click to expand...
Click to collapse
Yes that could be a problem. If you were on a sense rom it would not be. Because it does not wipe. Those ruu are unique in that they don't. The s-off ones and every other carriers ruu do wipe.
Sent from my HTC6535LVW using Tapatalk

dottat said:
Yes that could be a problem. If you were on a sense rom it would not be. Because it does not wipe. Those ruu are unique in that they don't. The s-off ones and every other carriers ruu do wipe.
Sent from my HTC6535LVW using Tapatalk
Click to expand...
Click to collapse
Im going to attempt to reflash the latest verizon radios in Hboot and see if it clears the whatever band settings i changed that killed my radio? Perhaps this is the same as what a full RUU would be but radio only.
Edit: that didnt work. Still "no service"

bacon612 said:
Im going to attempt to reflash the latest verizon radios in Hboot and see if it clears the whatever band settings i changed that killed my radio? Perhaps this is the same as what a full RUU would be but radio only.
Edit: that didnt work. Still "no service"
Click to expand...
Click to collapse
Factory reset on stock recovery now?
Sent from my HTC6535LVW using Tapatalk

dottat said:
Factory reset on stock recovery now?
Sent from my HTC6535LVW using Tapatalk
Click to expand...
Click to collapse
Did a full RUU. That didnt work. Factory reset worked!!!!! Thanks so much!

bacon612 said:
Did a full RUU. That didnt work. Factory reset worked!!!!! Thanks so much!
Click to expand...
Click to collapse
Yeah. That's always been the old standby as it sets the nv golden config back.
Sent from my HTC6535LVW using Tapatalk

So while that did reset my radio. My SIM card reader is also broken. My LTE comes in and out. Its my fault.
I have been sent a warranty replacement from VZW but its running the 5.0.1 firmware. I have come to learn that there is no way to RUU downgrade to a 4.4.4 firmware so I can run sunshine to S-Off.
Does this mean I am SOL installing TWRP and roms since im stuck S-ON? ive actually never been S-On on an HTC device before.

bacon612 said:
So while that did reset my radio. My SIM card reader is also broken. My LTE comes in and out. Its my fault.
I have been sent a warranty replacement from VZW but its running the 5.0.1 firmware. I have come to learn that there is no way to RUU downgrade to a 4.4.4 firmware so I can run sunshine to S-Off.
Does this mean I am SOL installing TWRP and roms since im stuck S-ON? ive actually never been S-On on an HTC device before.
Click to expand...
Click to collapse
You can use a Java Card to S-OFF your M8 - check out the Verizon M9 Java Card thread.
(@dottat has one, he is my recommendation - but all are very trustworthy and if someone is closer it may be easier on you to go with them)

Been having this issue myself. Tried RUU, flashing all radios from 4.4.2 on up, factory reset, etc. I'm only getting 3G-- not LTE whatsoever. Any ideas?
Edit: Got a new SIM-- no cigar. Unless there are some network settings that I don't know about, the 4G antenna might just be broken or something

dottat said:
Factory reset on stock recovery now?
Click to expand...
Click to collapse
Thank you! This saved me from having to get a new M8 from Verizon (after the new SIM didn't work) and losing S-OFF.

meskibob said:
Thank you! This saved me from having to get a new M8 from Verizon (after the new SIM didn't work) and losing S-OFF.
Click to expand...
Click to collapse
It's not possible to lose s-off? Did you turn it on yourself?
Sent from my Nexus 6 using Tapatalk

dottat said:
It's not possible to lose s-off? Did you turn it on yourself?
Click to expand...
Click to collapse
I meant that I can keep my current M8 (still S-OFF) and have working LTE, instead of having to swap it with the new M8 that Verizon is sending to me (which I can now return).

meskibob said:
I meant that I can keep my current M8 (still S-OFF) and have working LTE, instead of having to swap it with the new M8 that Verizon is sending to me (which I can now return).
Click to expand...
Click to collapse
Thank you for the clarification. Gotta keep the folks from spinning rumors you can lose s-off
Sent from my Nexus 6 using Tapatalk

dottat said:
Thank you for the clarification. Gotta keep the folks from spinning rumors you can lose s-off
Click to expand...
Click to collapse
Sorry for the confusion, and thanks again!

No dice. On any of these fixes. I've gone through all the RUUs that dottat has posted, full back to stock (with root /s-off). I'm at a complete loss. Does anyone have any other suggestions to try and get this fixed?
After I flashed on of the RUUs I have 4G for about 10 mins, then it bumps back down to 3G. I've checked this in three different cities (Home, Work, Friends) so its not the network in my area. I was thinking of stopping at Verizon, maybe get a new SIM, but I'm not sure if that would work.