Database Develop

Nexus isn't finding network :mad: Help is needed

My Nexus was on 5.0.41, all working sweet, then it stopped "finding" the network. No update, flashing or anything was done prior to the problem.
I tried a SIM from another provider, but still - the "No Service" is written on screen, and when I try to search for networks, it says "Error searching for networks".
I then tried the following ideas (nothing helped):
- Reflashed the Radio image.
- downgraded the Radio image.
- Upgraded it again.
- Flashed the Stock ROM (unrooted and rooted).
- Flashed CM5053.
All was done with wipes as needed.
Any suggestions will be more than welcomed!
Can the device just get bricked like that? with no reason?
It sometimes identifies the SIM's provider (Orange for example) but always with No Service.

It sounds like your SIM card slot isn't holding the card in tight enough to make full contact... try putting a business card, cut down to size, between the SIM and the phone's frame (note, not the contacts side, but the back side) to force the SIM down onto the reader tighter.
If that does nothing, not sure what to tell you?

it didn't help

I'm Italian and I have the same your problem .. I only work in 2G GSM'...ve tried to see if you do so?
I opened another tread here Forum

You need a new SIM.
I just had this problem on Friday. The SIM some how falls of the network and your provider network will not allow it to reconnect.
I can't remember, but if I am right Orange is owned/owns by T-Mobile. Hence they have the same network.
The puzzling part about this is why it happens. This is the second SIM I have gone through with my N1, I also had one go with my G1, my sister bought that G1 and the SIM went out again. My mom bought her G1 same day as me and hers has died once. My friend has a MT3G and his has died two times now. I find this extremely annoying.
I tried every suggestion on the internet for repairing or troubleshooting a SIM. It is a waste of time. Well, everything short of dropping it in isoproply alcohol to clean the contact.

I tried a 2G and a 3G SIM on mine, and had the same result, so my problem is different.
My device just doesn't register with the network, no matter what provider or SIM generation I choose.
Can I ask for a RMA if I unlocked the bootloader?

I do not know you definitely do not pass it under warranty

Ryan then you say you clean the contacts of the nexus or the sim with isopropyl

Mine is now doing that as well and so far everything that I tried isn't fixing it. I get it to connect briefly with edge and then nothing. I am going to try a new sim tonight after work and see if that helps, otherwise unsure of what to do after that...anybody got any answers or suggestions?

I've been suffering from this... have an RMA coming but I got mine to work. Make sure you also have CDMA preferred on there or whatever the default is. If it says unknown you have to reboot the radio somehow. I pulled my battery, waited 5-10 seconds. Then i went and checked airplane mode on and off. Then i checked the service menu again. I can't remember if i had to pull the battery another time but it came back from "unknown" to cdma preferred. You can also try turning the radio on and off via the service menu. Finally select your radio bands for your region by pressing the menu button under phone information again in the service menu and select radio bands. I'm not sure if automatic is a good or bad idea but it couldn't hurt testing it if you still have some issues even after selecting your region specific bands. After this you should be able to maybe search and register or you may need to turn the radio on and off again via airplane or the service menu. I played around with it alot to get it running again.
Also I'm tmobile usa using the one for t-mobile bands. I'm not sure if CDMA preferred is a world wide setting or if its gsm or something else.. but the bands are specific to your region definitely.

Loosing Signal...

My g1 running latest cyanogen's , and now the phone loose signal randomly during the day and never get it back until a reboot, and while somtime I reboot and doesnt get any signal and add an no sim card sign to the problem.
I remove the sim card and the battery then put them back on and it work good for a couple of hours then do the same thing?
anyone have figured out whats the problem on this yet?
thank you

anyone? know how to deal with this?
ive read trough the forum and when i loose signal , I can activate the air plane mode and turn it off to get the signal back and it work, but sometime I try to do the trick but the Sim card problem occur, theres no way out...

Same issue here, G1, worked fine until 5.0.7, then blam, no data connection and drops signal completely. Acting like a dead radio IMO.

Now I just cant make my phone sim card and signal work...its not even a phone anymore...?? need some serious help =p

Ya, I declared mine dead. If you have a warranty still, unroot and flash back to stock firmware and exchange it for a new one. I don't have one, me= SOL.

well I might think its a sim card connection problem, cause when my phone is sitting on a desk he can work all day...but as soon as i put it in my pocket or is in my hand moving around...he does the trick and loose connection and the no sim card problem occur, so it might be a problem with the sim card not enough close to the ''sim card reader'' so ill try to take the phone to a local phone store who would fix it or htc ...dunno

fix/cure
goto to ur phone
hit the dialer and type *#*#4636#*#* ({ do Not Press Send )
select phone info
scroll down till u see a drop down tab. this tab should have wcdma preferred, gsm, gsm auto prl , etc...
select wcdma preffered. and wait untill your signal connects. ( if urs already said wcdma preferred then choose gsm auto then switch back to wcdma
i found this thread in search of a battery problem in cm 507 t3. i no longer have battery issues but i notice even with wcdma preferred i still loose signal here and there but it cuts rite back on like within 30 seconds. almost like a 30 sec timeout if u understand were im goin. but post your results. srry i dnt have a link to the exact thread were i found it.

b6gsix said:
goto to ur phone
hit the dialer and type *#*#4636#*#* ({ do not press send )
select phone info
scroll down till u see a drop down tab. This tab should have wcdma preferred, gsm, gsm auto prl , etc...
Select wcdma preffered. And wait untill your signal connects. ( if urs already said wcdma preferred then choose gsm auto then switch back to wcdma
i found this thread in search of a battery problem in cm 507 t3. I no longer have battery issues but i notice even with wcdma preferred i still loose signal here and there but it cuts rite back on like within 30 seconds. Almost like a 30 sec timeout if u understand were im goin. But post your results. Srry i dnt have a link to the exact thread were i found it.
Click to expand...
Click to collapse
" it solved issue for me...idk how...im no dev but it worked on my g1 somehow..."

sound bizzare...put ill give it a try somehow...anyone can comment on b6g post?

just try it fool. why so skeptic

thanks...ive done it and will give feedback in a couple of hours...
Thank you very much for taking the time to look at my problem but your tip didnt solve my problem, its still occurs...

I've recently been having the same problem...
The phone, HTC Dream (EBI1) from Rogers, sometimes recognizes my perfectly functional SIM card, and most other times does not. This has been happening for a while now, and usually a reboot or two would solve the problem, but now it seems like it has finally quit (I've been rebooting/powering off/battery pulling for the last 2 hours, and removing and inserting the SIM card). I've changed ROMs, (well between different versions of CyanogenMod but it worked fine with it before) and nothing.
The strange part is, after rebooting 10 to 30 times and it actually recognizes the SIM card, if the device is left on, it will continue to recognize the card... I live in an area of s*** reception, and frequently go in and out of service, I've enabled disabled 3G, WiFi on/off, and it will still work for days, UNLESS the radio is turned off for whatever reason (Airplane mode, or power off/reboot).
Basically my only hope is to pray to the G1 Gods that it'll recognize my SIM card, and if it does, then do not loose power for any reason...
If anyone has any info what so ever, please let me know. Also, If anyone knows how to get a log of everything that happens from boot, I'd love to know how.
My phone is the HTC Dream (EBI1) from Rogers, currently running: CyanogenMod 5.0.7 test2
Danger SPL
RA Recovery 1.7.0R
HBOOT-1.33.2005 (DREA21000)
RADIO-3.22.26.17

help cant connect to network or save proper network or sms settings

a quick history of what I've done so far
Sumsung I897 captivate from ATT unlock and being used on Telus network was working great for about 4 days, then all kinds of problem started cropping up.
Phone came unlocked, I rooted using update.zip from xda, installed rom manager and started removing ATT bloatware, entered SMS and APN info which worked fine.
Yesterday I noticed that where I once got good reception I was now getting nothing and would have to drive down the street before I would get something descent. I thought maybe I'd put it back to stock with rom manager and see if that would help which it did not. It actually made it worse, decided to go all out and use the Odin3 one click downloader just to make sure I was back to stock firmware. This didn't work either but now I can enter the SMS and change the preferred network type but it doesn't save. Preferred network type is grayed out and even though I can change it it never save same as SMS.
Now I can't hold connecting in my living room where my wifes Milestone gets full bars. I tried taking the phone to where I had the best signal and change the preferred network, SMS, and set the network operator but it doesn't save any info, can't find on operator half the time on manual or auto and gave me an error and logged it to #*9900#
I've been at this for 2 days straight and can't figure out how to get it right back to stock, it seems to keep hanging onto the same preferred network and not saving anything I enter.
What can I do to get back to stock, and it has to be something that wipes everything clean, clean, clean, because even the GSM disconnects stay logged under *#*#4636#*#*
***I desperately even tried pulling the batt and SIM card for the night in hopes that would do something.

So, if I'm understand what happened correctly, you bought an unlocked Captivate, rooted it, deleted some bloatware, entered your Telus APN info and everything worked awesome for about four days. Now everything has gone down the hole. Is that right?
If that is the case, then we need to figure out what changed. Using Odin3 would have definitely put you back to stock/unrooted your phone, I don't think you could go back any further than that. If I were you, I would act like I first got the phone. As in, I would do everything you did to it, as if was day one. At one point, everything worked fine. Try to recreate that. You can always look into exchanging it or perhaps Samsung customer support can give you a little more insight to what's going on. Here's the number if you want to try them out.
Samsung customer service - 1.800.726.7864

Thanks, I've gone through the process a few times today from start to finish trying to figure it out ... maybe some of the problems aren't real problems and just limitations that I didn't know where their. I've since flash with odin3+re-partion to the bone stock i897UCJF6 as in not the one click method. It loaded fine but still have the same issue, I can't set preferred network type or get it to keep the number entered into SMSC. I think if I can get passed that I'll be be one the up side of winning. I keep noticing that the log of GSM disconnects never clears or the usage statistics under *#*#4636#*# , I'm thinking its in the same area that other bad data is being held onto instead of being cleared when flash firmware or factory reset.
Is anyone able to change preferred network type? maybe I was never able to change it but I think I should be able too.
I may be wrong in assuming this but I don't think ATT is going to be interested helping me connect one of their handset that I'm trying to use on foreign network, but I could be wrong and is an open option.

*#*#197328640#*#*
debug screen
phone control
network control
band selection
wcdma band
wcdma all
menu->end
used this to lock my phone to WCDMA only so that problem is solved
*** never mind posted to soon it still didn't stick after rebooting
be carefull using the service menu as I have no idea what most of this stuff does

I got the SMS service number issue fix by taking out my sim, swapping in another known working sim from the same network, setting the service number, pressing update and then swapping back. Before every time I tried to update the service number it spit out an "update error" can anybody tell where the SMS config data is stored? on the phone or sim.
The only problem I'm having now is with reception which maybe fixable if I can set the preferred network to WCDMA only. But the button for that option is a light blue colour vs other phones that I can change this setting on. Does the blue mean anything like a locked function or something that set by the firmware as unchangeable?

WEIRD! Emergency call only! O_o

This one is pretty *beep* up! The phone was working pretty fine last time I looked at it (30 minutes ago), I put it in my pocket and had dinner (as always), then I took it out to make a phone call and it says just "Emergency call only" instead of showing my phone operator (3 ITA). I tried rebooting, no luck! Still the same.
Strange thing is that it has signal (full) but I can't make/receive calls or use data network. If I go under Settings -> Wifi -> Mobile networks settings and I look for operators it searches and I can see all of them (mine included) but I cannot select it!! Neither mine nor another one (TIM, which is the roaming default one for my operator when there's no signal)...it just says "Unable to connect. Try later".
Weirdest thing of all is that I AM RECEIVING PUSH EMAILS from gmail!!!
Anyone has a clue about this??? Has it ever happened to anyone?
Btw, I'm using zeroblaster rom, which is based on official italian froyo firmware...everything was working so good until ten minutes ago!
Hope I don't have to reflash...

Just got weirder: put my sim on another phone...it registers without problems on the network.
Then put the other's phone's sim on my sgs...it registers without problems.
Then switched again: Emergency calls only
WHAT THE ****??!? (what are we? children? sorry mod...lol)

carlocb said:
Just got weirder: put my sim on another phone...it registers without problems on the network.
Then put the other's phone's sim on my sgs...it registers without problems.
Then switched again: Emergency calls only
WHAT THE ****??!? (what are we? children? sorry mod...lol)
Click to expand...
Click to collapse
Sounds like it may be ur sim card but its weird it would work in another phone. Perhaps its a mix of ur sim and ur rom. A flash may be ur only fix...
Sent from my GT-I9000M using XDA App

yiannisthegreek said:
Sounds like it may be ur sim card but its weird it would work in another phone. Perhaps its a mix of ur sim and ur rom. A flash may be ur only fix...
Sent from my GT-I9000M using XDA App
Click to expand...
Click to collapse
It is WAY weird imho! The weirdest thing being that I'm still receiving gmail's pushes after 5-6 reboots while it keeps saying "emergency calls only".
Also I saw that when the phone boots, while it's loading the launcher, widgets, etc. it gets the connection for like 2-3 seconds it shows my operator (in the lockscreen), then it switches to "emergency calls only"...
I'll wait another hour (maybe as the issue came out of nowhere it'll go away? ) then I'll try reflashing...since I had to change to k9 anyway to fix the /system corruption etc. -.- I'm already backing-up...
Hope the flash will fix this though...it's really a pain in the ***

carlocb said:
It is WAY weird imho! The weirdest thing being that I'm still receiving gmail's pushes after 5-6 reboots while it keeps saying "emergency calls only".
Also I saw that when the phone boots, while it's loading the launcher, widgets, etc. it gets the connection for like 2-3 seconds it shows my operator (in the lockscreen), then it switches to "emergency calls only"...
I'll wait another hour (maybe as the issue came out of nowhere it'll go away? ) then I'll try reflashing...since I had to change to k9 anyway to fix the /system corruption etc. -.- I'm already backing-up...
Hope the flash will fix this though...it's really a pain in the ***
Click to expand...
Click to collapse
the same thing that is happening to me (H3G italy)... really strange

enlightener said:
the same thing that is happening to me (H3G italy)... really strange
Click to expand...
Click to collapse
Sounds like your network (3) is down. Id call them to see what is going on...

enlightener said:
the same thing that is happening to me (H3G italy)... really strange
Click to expand...
Click to collapse
Are you kidding me?? What, right NOW?? Could it be something wrong with H3G? Did you putting sim on another phone? Getting weirder and weirder lol!!!
What rom/firmware are you using??

yiannisthegreek said:
Sounds like your network (3) is down. Id call them to see what is going on...
Click to expand...
Click to collapse
No that's not it, because putting H3G sim on another phone WORKS!!
And anyway, when H3G's down it uses TIM as roaming...this time I cannot even select TIM as operator, it refuses! And normally you can always use tim in roaming if you want (even when H3G has signal...)!

carlocb said:
No that's not it, because putting H3G sim on another phone WORKS!!
And anyway, when H3G's down it uses TIM as roaming...this time I cannot even select TIM as operator, it refuses! And normally you can always use tim in roaming if you want (even when H3G has signal...)!
Click to expand...
Click to collapse
Hmmmm... That is weird alright.
If you purchased your SGS through your carrier H3G I would still call them to report it as there are now 2 of you experiencing the same issue so it cant just be phone related and if it is then they will have to honor your warranty to replace or fix it (both of you)...

It's happening to me too.. i also use H3G Italy on my Galaxy S and i have this issue since around 19:00 this evening with my work SIM card
I have a Tayutama 1.0.0 ROM based on the JPM Froyo ROM.. it's the first time this is happening to me..

lionita said:
It's happening to me too.. i also use H3G Italy on my Galaxy S and i have this issue since around 19:00 this evening with my work SIM card
I have a Tayutama 1.0.0 ROM based on the JPM Froyo ROM.. it's the first time this is happening to me..
Click to expand...
Click to collapse
Well... That is 3 of you so it must be carrier related in some way. Again... Call your carrier and explain what is happening. Explain that when you put the sim into a different device it works ok but in the SGS all you can do is make emergency calls and they should be able to tell you what is going on.
Make sure to post back as I am now interested in seeing what your issue is / was...

carlocb said:
Are you kidding me?? What, right NOW?? Could it be something wrong with H3G? Did you putting sim on another phone? Getting weirder and weirder lol!!!
What rom/firmware are you using??
Click to expand...
Click to collapse
JP5 (i tried another one, don't remember what version but it's the same, it is not firmware related)
in settings->about phone->status it says:
network: 3 ITA
mobile network type: UMTS
service state: out of service
mobile network state: connected (and it works... )
but ... int the status bar it shows "Only emergency calls"...
i haven't tried another phone yet... will do now...
edit: tried my sim on another phone and another sim on my phone.... it works....wtf?

enlightener said:
JP5 (i tried another one, don't remember what version but it's the same, it is not firmware related)
in settings->about phone->status it says:
network: 3 ITA
mobile network type: UMTS
service state: out of service
mobile network state: connected (and it works... )
but ... int the status bar it shows "Only emergency calls"...
i haven't tried another phone yet... will do now...
Click to expand...
Click to collapse
You just answered your own question I think. "service state: out of service" says it all I believe even if the sim cards DO rgister on another phone for whatever reason.
The fact is the they dont register on your Galaxy S so call them and report the issue and they should be able to help you...

Yeah well, you see, that could be a problem because...H3G has a TERRIBLE customer care, lol! Basically the thing is you can't call them...you need to send an email, and an answer will arrive 2-3 days later. That's not good enough for me! If it doesn't get fixed tomorrow I'll go directly to a 3shop and they'll call someone higher to understand this. Hope they fix it soon though!
Anyway...now I have a strong curiosity: could it be JUST the SGS? If so...WHY???? I tried putting the simcard on a Nokia E71 and it works...does anyone have another android phone with H3G? Could it be somehow "system"-related? Because I can't figure out why a specific phone device shouldn't work point-blank with my operator! And that's even a phone they sell themselves!!

Rebooted and now it WORKS! THANK GOD (even if I'm atheist....)
Still would like to know why it did this!

I had a similar problem where if I was in an area with bad reception it would default to emergency calls only. But the funny thing is when I go into the menu settings I can see my carrier and when I try to select it, it says network unreachable. Eventually I would get signal but the tab still says emergency calls only. Tried making calls but it wouldn't allow.
Initially to rectify the problem I rebooted the phone and that worked but got annoying. So I realised that if I left it for a couple of mins whenn it had reception it would fix itself. As of recently (last 2 months) I haven't any problems.
Btw i'm on jpm and my carrier is 3 australia. It's rubbish service
Sent from my GT-I9000 using XDA App

Hello,
Same thing happening to me... It must have something related to signal strength, i went downtown and phone was perfectly fine.
But at home it keeps loosing signal, i dialed *#*#0011#*#* and it shows changing BAND... as if it was searching for service on different bands...
But the thing is, i tried inserting the SIM on other 2 phones and i get a FULL signal, so i guess signal is coming pretty intense here... why is the SGS loosing it? i have no idea...
By the way, i am from Brazil, and that started happening after i flashed my rom to FROYO VJJPA..

me too, has no signal at home but works for another phone.
gentefina said:
Hello,
Same thing happening to me... It must have something related to signal strength, i went downtown and phone was perfectly fine.
But at home it keeps loosing signal, i dialed *#*#0011#*#* and it shows changing BAND... as if it was searching for service on different bands...
But the thing is, i tried inserting the SIM on other 2 phones and i get a FULL signal, so i guess signal is coming pretty intense here... why is the SGS loosing it? i have no idea...
By the way, i am from Brazil, and that started happening after i flashed my rom to FROYO VJJPA..
Click to expand...
Click to collapse

Come on guys help us out!
My battery drains because the cell keeps searching for signal!

gentefina said:
Come on guys help us out!
My battery drains because the cell keeps searching for signal!
Click to expand...
Click to collapse
Same is happening to me. Serive state says out of service so could registering the sim card to phone be the actual isuue?

H/K M8 Radio/network type/MEID problems

Hey guys!
I have the one M8 Sprint H/K edition with S-OFF which seems to be unlocked by now (I tried unlocking methods found here) because it accepts other carriers SIM (international) cards and shows up Sim menu, but I can't get it switch to WCDMA mode and it says "Radio Off". But that's one thing. The other weird thing is that when I recieved the phone (bought on eBay) in "about the phone" -> "account" it had the following info: [email protected] which belongs to Verizon instead of Sprint! I thought it is unlocked and contacted Sprint International, they checked IMEI and serial number and said it's not blacklisted but not unlocked!
So then I reset account settings (in "activate this phone" menu) and now it shows "imei number@hcm.sprintpcs.com".
But I also had the other problem even before the reset. In "about the phone" I could see IMEI # but MEID had and still has 00000000 (eight zeroes), even though fastboot getvar all command shows the correct MEID!
In *#*#4636#*#* menu IMEI is shown as 00000000 (eight zeroes), RADIO OFF and can't switch network type, even though the phone shows correct phone number if you hit "update" at the bottom of this very menu.
Have you had anything like that with your phones guys?
Maybe there's a way to force the phone to switch to WCDMA mode?
Now it's running lollipop, but nothing changed since 4.4.4
Hope we will find the solution together

mrMMMichail said:
Hey guys!
I have the one M8 Sprint H/K edition with S-OFF which seems to be unlocked by now (I tried unlocking methods found here) because it accepts other carriers SIM (international) cards and shows up Sim menu, but I can't get it switch to WCDMA mode and it says "Radio Off". But that's one thing. The other weird thing is that when I recieved the phone (bought on eBay) in "about the phone" -> "account" it had the following info: [email protected] which belongs to Verizon instead of Sprint! I thought it is unlocked and contacted Sprint International, they checked IMEI and serial number and said it's not blacklisted but not unlocked!
So then I reset account settings (in "activate this phone" menu) and now it shows "imei number@hcm.sprintpcs.com".
But I also had the other problem even before the reset. In "about the phone" I could see IMEI # but MEID had and still has 00000000 (eight zeroes), even though fastboot getvar all command shows the correct MEID!
In *#*#4636#*#* menu IMEI is shown as 00000000 (eight zeroes), RADIO OFF and can't switch network type, even though the phone shows correct phone number if you hit "update" at the bottom of this very menu.
Have you had anything like that with your phones guys?
Maybe there's a way to force the phone to switch to WCDMA mode?
Now it's running lollipop, but nothing changed since 4.4.4
Hope we will find the solution together
Click to expand...
Click to collapse
Looks like the phone had lot of work around by previous user. If you can confirm that gsm working and you can call using gsm simcard I can help you with wcdma activation. By the way, HTC never released a Harman kardon edition for Verizon, and it must be Sprint (color black with champagne gold accent). Also, need not worry about MEID as anyone can easily change if the phone is s-off. Hope the phone didn't have a bad esn

Cashreedhar said:
Looks like the phone had lot of work around by previous user. If you can confirm that gsm working and you can call using gsm simcard I can help you with wcdma activation. By the way, HTC never released a Harman kardon edition for Verizon, and it must be Sprint (color black with champagne gold accent). Also, need not worry about MEID as anyone can easily change if the phone is s-off. Hope the phone didn't have a bad esn
Click to expand...
Click to collapse
Thanks for reply!
The phone is pure HK edition. Before sending it to me friend of mine (in the US) confirmed that phone works and activates on Sprint network. I even contacted Sprint to ask them if the phone is unlocked, and they said they had no request to unlock this particular phone and it is not blacklisted (clean ESN).
In about a week I recieved the phone in my country, checked bootloader and it was "Locked" (not "re-locked") and "S-on" running 4.4.4. Then I unlocked bootloader with HTCDev instructions and followed "unlocking" instructions found here. The phone picks up foreign SIM card because "Sim toolkit" app pops up as soon as I insert SIM card. But GSM option is still greyed out and I'm unable to select different network types. If I try switching to UMTS/GSM from settings - mobile data menu it simply says "no SIM in the phone, swithcing back to CDMA mode" and if from *#*#4636#*#* menu it doesn't let me select other network type. Also the radio is still off fore some reason... If needed I can take a brief video showing all settings I have.
I was surprised to see Verison account on Sprint phone, but telling you as is.
P.s. friend of mine owns unlocked H/K M8 and I compare his settings to mine, he has radio ON and GSM is not greyed out and he can switch network types back and forth.
Thanks for help!

mrMMMichail said:
Thanks for reply!
The phone is pure HK edition. Before sending it to me friend of mine (in the US) confirmed that phone works and activates on Sprint network. I even contacted Sprint to ask them if the phone is unlocked, and they said they had no request to unlock this particular phone and it is not blacklisted (clean ESN).
In about a week I recieved the phone in my country, checked bootloader and it was "Locked" (not "re-locked") and "S-on" running 4.4.4. Then I unlocked bootloader with HTCDev instructions and followed "unlocking" instructions found here. The phone picks up foreign SIM card because "Sim toolkit" app pops up as soon as I insert SIM card. But GSM option is still greyed out and I'm unable to select different network types. If I try switching to UMTS/GSM from settings - mobile data menu it simply says "no SIM in the phone, swithcing back to CDMA mode" and if from *#*#4636#*#* menu it doesn't let me select other network type. Also the radio is still off fore some reason... If needed I can take a brief video showing all settings I have.
I was surprised to see Verison account on Sprint phone, but telling you as is.
P.s. friend of mine owns unlocked H/K M8 and I compare his settings to mine, he has radio ON and GSM is not greyed out and he can switch network types back and forth.
Thanks for help!
Click to expand...
Click to collapse
That means the phone is not SIM unlocked. Check the different threads on how SIM unlock under Sprint forum. Once it is SIM unlocked you will receive the gsm signal and you should be able to make calls. If your friend had contacted Sprint (if he was the owner of the phone) for SIM unlock they could have done it in a minute (they do for international travel). Well, anyways there are different methods to SIM unlock and make WCDMA work on your phone. Before that if you want to try changing the network type, use this app - https://play.google.com/store/apps/details?id=de.mangelow.network works very well.
Also, I am not sure for gsm if you even need MEID. If you want to restore the original MEID, try this link - http://androidforums.com/threads/guide-how-to-restore-service-if-youve-lost-your-meid.352598/
Good Luck!

Cashreedhar said:
That means the phone is not SIM unlocked. Check the different threads on how SIM unlock under Sprint forum. Once it is SIM unlocked you will receive the gsm signal and you should be able to make calls. If your friend had contacted Sprint (if he was the owner of the phone) for SIM unlock they could have done it in a minute (they do for international travel). Well, anyways there are different methods to SIM unlock and make WCDMA work on your phone. Before that if you want to try changing the network type, use this app - https://play.google.com/store/apps/details?id=de.mangelow.network works very well.
Also, I am not sure for gsm if you even need MEID. If you want to restore the original MEID, try this link - http://androidforums.com/threads/guide-how-to-restore-service-if-youve-lost-your-meid.352598/
Good Luck!
Click to expand...
Click to collapse
Hey!
FINALLY!!! I got the phone unlocked!
I decided to write original MEID/ESN to the phone with CDMA Tools app and right after reboot the phone said "switching to international mode" and hooked up to my carrier's network. I suspect I got it unlocked a long time ago, but couldn't complete the unlock due to zeroed out MEID/ESN.
I'm sharing this info with all people here who got stuck with the "unlock" - before throwing your phone away check if it displays MEID normally. If not, then check original MEID/IMEI/Serial number in bootloader - barcode and write it down. Then write it to the phone with CDMA tools.
If someone needs an advice, just ask.

HTC one 2017 Same problem
mrMMMichail said:
Hey!
FINALLY!!! I got the phone unlocked!
I decided to write original MEID/ESN to the phone with CDMA Tools app and right after reboot the phone said "switching to international mode" and hooked up to my carrier's network. I suspect I got it unlocked a long time ago, but couldn't complete the unlock due to zeroed out MEID/ESN.
I'm sharing this info with all people here who got stuck with the "unlock" - before throwing your phone away check if it displays MEID normally. If not, then check original MEID/IMEI/Serial number in bootloader - barcode and write it down. Then write it to the phone with CDMA tools.
If someone needs an advice, just ask.
Click to expand...
Click to collapse
Hey man, thanks for posting your solution! i'm glad i don't have to throw my phone away after all...
I would really appreciate if you could explain more of how to use the CDMA tools to write the original MEID/ESN to the phone. I'm from Mexico so if it's posible that you can use a low level english or provide a link to a guide or tutorial, it would be extra awesome ! Thanks again

I'm having a tough timw getting the meid in place, looks it just keeps reverting to old. Are you using DFS or CDMA ?
mrMMMichail said:
Hey!
FINALLY!!! I got the phone unlocked!
I decided to write original MEID/ESN to the phone with CDMA Tools app and right after reboot the phone said "switching to international mode" and hooked up to my carrier's network. I suspect I got it unlocked a long time ago, but couldn't complete the unlock due to zeroed out MEID/ESN.
I'm sharing this info with all people here who got stuck with the "unlock" - before throwing your phone away check if it displays MEID normally. If not, then check original MEID/IMEI/Serial number in bootloader - barcode and write it down. Then write it to the phone with CDMA tools.
If someone needs an advice, just ask.
Click to expand...
Click to collapse