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Hi everyone,
I got a new Galaxy S5 (sm-900-w8) for my birthday. The device was bought in Canada.
It got unlocked for international usage (entered the 8 digits pin-code) and it worked PERFECTLY for 5 days.
After those 5 days the device got turned off because of the battery died. Recharged it and turned it on, and suddenly I get "Unregistered network" message on my lock screen.
Tried 4 different SIM cards from 4 different providers. Still, nothing.
The device DOES recognize a network when I turn it on, but after I'm trying to make a call 2 times (and gets a "call ended" message), it goes back to "Unregistered network" message or "Emergency calls only" message.
Please note that the signal bar is full.
Any idea how I can fix this problem?
Also, I rooted the device after the 3rd day. Does it mean I don't have my warranty anymore?
Thanks.
You didn't provide enough information for us to know what is going on.
The unregistered network simply means that your phone isn't detecting a valid SIM card. First try your SIM in another unlocked phone to see if the SIM card and or your account appear to be working. If not, then contact your carrier to check your account settings or replace the SIM card if necessary.
If the SIM works in another phone but not yours then we'd like to know where you bought your phone as the number one suspect would be IMEI blacklisting. If that isn't the issue, then the first thing to try for any unexplained anomalous behaviour is to wipe the system cache from recovery mode.
If the problem persists then you need to start troubleshooting which is nearly impossible without a detailed description of your situation. You didn't even tell us any basic info e.g. what carrier you are using, whether the SIM works in another phone, what S5 model, firmware, a step by step description of the changes you made to your phone, etc.
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fffft said:
You didn't provide enough information for us to know what is going on.
The unregistered network simply means that your phone isn't detecting a valid SIM card. First try your SIM in another unlocked phone to see if the SIM card and or your account appear to be working. If not, then contact your carrier to check your account settings or replace the SIM card if necessary.
If the SIM works in another phone but not yours then we'd like to know where you bought your phone as the number one suspect would be IMEI blacklisting. If that isn't the issue, then the first thing to try for any unexplained anomalous behaviour is to wipe the system cache from recovery mode.
If the problem persists then you need to start troubleshooting which is nearly impossible without a detailed description of your situation. You didn't even tell us any basic info e.g. what carrier you are using, whether the SIM works in another phone, what S5 model, firmware, a step by step description of the changes you made to your phone, etc.
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Click to expand...
Click to collapse
Thanks for the answer.
Now that I know which information you need:
- I tried my SIM card on a different device (Galaxy S3). It works perfectly.
- Also, as I mentioned earlier, I tried 3 additional SIM cards, all of them works perfectly on other devices, but not with my Galaxy S5.
- The device was bought from Rogers in Canada. I talked to them, they said it isn't blacklisted.
- I already tried to wipe the system cache from the recovery menu. Didn't help either.
- I wrote the model in the previous message: SM-900-W8.
- The current carrier is Golan Telecom in Israel.
- The firmware is 4.4.2 that came with the device. Didn't have the chance to update.
The step by step description you requested:
- I rooted to device.
- I unlocked it using a code that was given to me from some kind of shop in the mall (wasn't there, my gf took care of it), but it worked perfectly.
- The device worked well for 5 days, then the battery died and after I recharged it the problem started.
- If I disconnect my battery for several minutes and connects it again, the device DOES SHOW that it is connected to the network ("GOLAN T"), but if I try to call, after several seconds it disconnects and the "Emergency calls only" or the "Unregistered SIM" message appears.
- Tried reseting it to factory settings and to wipe the device's cache from the recovery menu. Didn't help.
dinovich said:
The current carrier is Golan Telecom in Israel.
Click to expand...
Click to collapse
Bingo. That is why you can never have too much information when troubleshooting.
Until proven otherwise, your problem is almost certain to be the fact that you are not using the S5 model that your carrier expects. Most Israeli carriers use the 900F model and you bought a 900W8 instead. The W8 is not intended for use in the middle east and has a different spectrum allocation than the 900F model.
Ask your carrier to spell out exactly what frequency bands they use in their network. More than likely one or more bands is missing in the W8 and that will be your problem. Other possibilities include region locking, which is Samsung trying to block you from doing exactly what you are attempting.. buying a phone in one country and using it elsewhere. You should also check the carrier blacklist (this is not the same as the IMEI blacklist).. but rather a roaming block that may be interfering because you are using the phone in a country that it wasn't intended for.
And possibly.. although unlikely, your carrier may block foreign IMEI numbers. You'd have to ask your carrier if they have any restrictions regarding handsets that customers purchase from third party sources.
There is one possible anomaly here. Your first post said that your phone worked for 5 days before failing. Was that 5 days in Canada or Israel? If Israel, that makes the last possibility more likely, although it could also be attributed to other factors.
Even though your SIM card working on a different handset tells us that there is some incompatibility between your phone and your carrier's network, you may still want to open a technical support ticket. It's possible that your carrier support department may have run into this issue before and have an expedient solution. Perhaps something as simple as needing to manually add the correct APN info.
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fffft said:
Bingo. That is why you can never have too much information when troubleshooting.
Until proven otherwise, your problem is almost certain to be the fact that you are not using the S5 model that your carrier expects. Most Israeli carriers use the 900F model and you bought a 900W8 instead. The W8 is not intended for use in the middle east and has a different spectrum allocation than the 900F model.
Ask your carrier to spell out exactly what frequency bands they use in their network. More than likely one or more bands is missing in the W8 and that will be your problem. Other possibilities include region locking, which is Samsung trying to block you from doing exactly what you are attempting.. buying a phone in one country and using it elsewhere. You should also check the carrier blacklist (this is not the same as the IMEI blacklist).. but rather a roaming block that may be interfering because you are using the phone in a country that it wasn't intended for.
And possibly.. although unlikely, your carrier may block foreign IMEI numbers. You'd have to ask your carrier if they have any restrictions regarding handsets that customers purchase from third party sources.
There is one possible anomaly here. Your first post said that your phone worked for 5 days before failing. Was that 5 days in Canada or Israel? If Israel, that makes the last possibility more likely, although it could also be attributed to other factors.
Even though your SIM card working on a different handset tells us that there is some incompatibility between your phone and your carrier's network, you may still want to open a technical support ticket. It's possible that your carrier support department may have run into this issue before and have an expedient solution. Perhaps something as simple as needing to manually add the correct APN info.
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Click to expand...
Click to collapse
Hey, thanks again for the answer.
The 5 days that I mentioned (when the phoned worked perfectly) were in Israel. The phone was never used in Canada, so do you think the frequency issue is still likely?
I already talked to my carrier, and tell you the truth, the carrier doesn't sell any devices (at all), so I really doubt they will block my device.
Again, they didn't even knew I changed it. They checked it out when I called them, and they said they never block any device - I did mentioned that the device was from Canada.
And again: I tried SIM cards from 4 different carriers (except for Golan Telecom, I tried Cellcom, YouPhone and Hot Mobile).
Is there any other information that you need me to provide?
Just tell me what and I'll give you the information you need.
dinovich said:
Hey, thanks again for the answer.
The 5 days that I mentioned (when the phoned worked perfectly) were in Israel. The phone was never used in Canada, so do you think the frequency issue is still likely?
I already talked to my carrier, and tell you the truth, the carrier doesn't sell any devices (at all), so I really doubt they will block my device.
Again, they didn't even knew I changed it. They checked it out when I called them, and they said they never block any device - I did mentioned that the device was from Canada.
And again: I tried SIM cards from 4 different carriers (except for Golan Telecom, I tried Cellcom, YouPhone and Hot Mobile).
Is there any other information that you need me to provide?
Just tell me what and I'll give you the information you need.
Click to expand...
Click to collapse
BTW, I've checked the APN info, but it's just needed for MMS and for the 3G internet.
Tried with that configuration and without, it didn't matter.
Oh! I just remembered one more thing.
I succeeded browsing the internet VERY slowly, several times (it wasn't WIFI of course). Super-weird.
dinovich said:
The 5 days that I mentioned (when the phoned worked perfectly) were in Israel. The phone was never used in Canada, so do you think the frequency issue is still likely?
Click to expand...
Click to collapse
That datum confuses the issue, but yes the ostensibly missing frequency bands are still the most likely culprit. Particularly since you tried multiple known good SIM cards in your phone. Something is conflicting between your phone and your local networks. And by far the most obvious cause is the spectrum allocation. Meaning that it may work erratically (or for five days) but can fail when the system tries to use the missing band(s).
Less likely, your local carriers may be conflicting with something else in the phone. Or it could be a random hardware failure, although that is very improbable. If it was a hardware failure, I'd think more in terms of a damaged SIM slot than semiconductor failure. Troubleshooting is all about ruling out possibilities and looking for patterns. So you need to work though the list of the most obvious candidates. For a start:
- Find out what frequency bands your carrier uses. And compare that to the W8 specs (Google search: sm-g900w8 specs)
- Check the roaming /region lock blacklist i.e. /system/csc/customer.xml and confirm that your Israeli carriers are not listed in that file.
- Find out what your carrier's APN information is and confirm that your phone has the same settings.
If you don't find a solution there, you should wipe your system cache from recovery mode and do a factory data reset. And failing that even write a full stock firmware image to the phone again - the latest firmware available just to cover the slight possibility that it could be a firmware bug.
And while not a panacea, you should still open a support ticket with your carrier. Don't get them mired in a long set of I've already tried this and this and this.. Just tell them that your phone worked fine for 5 days and now gives an "unregistered network" error. And that your SIM continues to work in other handsets. That should spur them to look into your account settings and hopefully identify anything that may be conflicting with your W8 phone.
And as a last resort, I guess claim it under warranty. If you used Towel root your warranty is probably still intact. You can boot to download mode or install the Phone Info app to find out your Knox flag status. If it is 0x0, then you only need to restore the stock firmware and you should be fine with respect to warranty.
If your Knox flag is 0x1 for any reason, Samsung will raise a stink about it. A lot of carriers don't care about Knox with respect to warranties thought. I don't know Roger's position on that point but in any event don't make a warranty claim directly with Samsung if you have a 0x1 flag. Make a warranty claim through your carrier (presumably Rogers) instead.
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fffft said:
That datum confuses the issue, but yes the ostensibly missing frequency bands are still the most likely culprit. Particularly since you tried multiple known good SIM cards in your phone. Something is conflicting between your phone and your local networks. And by far the most obvious cause is the spectrum allocation. Meaning that it may work erratically (or for five days) but can fail when the system tries to use the missing band(s).
Less likely, your local carriers may be conflicting with something else in the phone. Or it could be a random hardware failure, although that is very improbable. Troubleshooting is all about ruling out possibilities and looking for patterns. So you need to work though the list of the most obvious candidates. For a start:
- Find out what frequency bands your carrier uses. And compare that to the W8 specs (Google search: sm-g900w8 specs)
- If you are rooted, check the roaming /region lock blacklist i.e. /system/csc/customer.xml and confirm that your Israeli carriers are not listed in that file.
- Find out what your carrier's APN information is and confirm that your phone has the same settings.
And while not a panacea, you should still open a support ticket with your carrier. Don't get them mired in a long set of I've already tried this and this and this.. Just tell them that your phone worked fine for 5 days and now gives an "unregistered network" error. And that your SIM continues to work in other handsets. That should spur them to look into your account settings and hopefully identify anything that may be conflicting with your W8 phone.
.
Click to expand...
Click to collapse
OK, thanks!
I'll check all of those and will let you know.
Can't call my carrier on Friday here in Israel, but I'll do that on Sunday and I'll update with details.
Thanks again.
dinovich said:
Oh! I just remembered one more thing.
I succeeded browsing the internet VERY slowly, several times (it wasn't WIFI of course). Super-weird.
OK, thanks!
I'll check all of those and will let you know.
Click to expand...
Click to collapse
Nope, not really all that weird. It sounds more and more like you are missing a key GSM frequency band.
Nevertheless you should check all of the possible culprits.
Good luck
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fffft said:
Nope, not really all that weird. It sounds more and more like you are missing a key GSM frequency band.
Nevertheless you should check all of the possible culprits.
Good luck
.
Click to expand...
Click to collapse
Quick search using google:
According to this: http://www.worldtimezone.com/gsm.html, Golan uses 3G 2100 frequency, which is supported according to this: http://www.samsung.com/ca/support/model/SM-G900WZKABMC (tech specs are expendable at the bottom).
Other frequencies seems to be supported as well. Actually, all the frequencies of the Israeli carriers seems to be supported.
If your handset supports all active frequencies that is great news, but you still need to work through the rest of the list of things to look into. Also, if you know anyone local with an unlocked 900F S5 phone, try your SIM in their phone.
Specs for Israeli 900F and Canadian 900W8, differences in bold.
You need to confirm that your carrier does not use the missing frequencies i.e. B8 (3G GSM 900) & B20 (LTE 800)
SM-G900F
2G GSM B8 (GSM 850MHz), B10 (E-GSM 900MHz), B13 (DCS 1800MHz), B14 (PCS 1900MHz)
3G UMTS B1 (IMT 2100MHz), B2 (PCS 1900MHz), B5 (US 850MHz Cellular), B8 (GSM 900MHz)
4G LTE B1(2100), B2(1900), B3(1800), B5(850), B7(2600), B8(900), B20(800)
SM-G900W8
2G GSM B8 (GSM 850 MHz), B10 (E-GSM 900 MHz), B13 (DCS 1800 MHz), B14 (PCS 1900 MHz)
3G UMTS B1 (IMT 2100 MHz), B2 (PCS 1900 MHz), B4 (AWS), B5 (US 850 MHz Cellular)
4G LTE B1 (2100), B2 (1900), B3 (1800), B4 (AWS), B5 (850), B7 (2600), B8 (900), B17 (700)
.
OP this may sound ridiculous but go into your System>About Phone and check for your imei... you can also do *#06# hit send on your dial pad...
If your imei shows 000 or something weird other than the one that is printed on the sticker under the battery or box then you have a defective phone. I usually see this Unregister Network thing happen to quite a few Samsungs over the years, starting with the S2. You may have done something and caused the IMEI to get lost/wiped in the EFS.
The best thing to do in this case is you have to have the IMEI rewritten. This may be really easy if there is still an EFS backup on the phone or if it is still accessible. Otherwise at the time of writing this I think both the Octopus/Z3X cannot write IMEI on the S5 so taking it to repair shop can be pointless until it does.
Worse case scenario is your actual baseband chip is screwed.
Anyway, check to see if your imei is there. No IMEI = network cannot register you on as you device doesn't exist.
fffft said:
If your handset supports all active frequencies that is great news, but you still need to work through the rest of the list of things to look into. Also, if you know anyone local with an unlocked 900F S5 phone, try your SIM in their phone.
Specs for Israeli 900F and Canadian 900W8, differences in bold.
You need to confirm that your carrier does not use the missing frequencies i.e. B8 (3G GSM 900) & B20 (LTE 800)
SM-G900F
2G GSM B8 (GSM 850MHz), B10 (E-GSM 900MHz), B13 (DCS 1800MHz), B14 (PCS 1900MHz)
3G UMTS B1 (IMT 2100MHz), B2 (PCS 1900MHz), B5 (US 850MHz Cellular), B8 (GSM 900MHz)
4G LTE B1(2100), B2(1900), B3(1800), B5(850), B7(2600), B8(900), B20(800)
SM-G900W8
2G GSM B8 (GSM 850 MHz), B10 (E-GSM 900 MHz), B13 (DCS 1800 MHz), B14 (PCS 1900 MHz)
3G UMTS B1 (IMT 2100 MHz), B2 (PCS 1900 MHz), B4 (AWS), B5 (US 850 MHz Cellular)
4G LTE B1 (2100), B2 (1900), B3 (1800), B4 (AWS), B5 (850), B7 (2600), B8 (900), B17 (700)
.
Click to expand...
Click to collapse
In isreal:
2G GSM: B8 (GSM 850MHz), B10 (E-GSM 900MHz), B13 (DCS 1800MHz).
3G UMTS: B1 (IMT 2100MHz), B5 (US 850MHz Cellular), B8 (GSM 900MHz)
4G LTE: B3(1800), Soon will use 2600Mhz too B7(2600) .
4g- Only before few week 4G open, but only 5Mhz of 1800Mhz are in use for now.
So only 900Mhz in 3G are missing..(Not all carroir useing this Fq...)
In hebrew only
http://iandroid.co.il/forum/download/file.php?id=18738&mode=view/rokbox.jpg
http://he.wikipedia.org/wiki/תקשורת_סלולרית_בישראל
But,what about Region lock ?! (If he did use 5 days it mean that he dosn't have one, right?)
http://forum.xda-developers.com/gal...on-lock-s5-t2867730/post55247717#post55247717
Go to www.protectyourdata.ca to check your imei if its blacklisted or not... I think its that simple....
http://www.imei.info/
This is one of the biggest issues.... phones are blacklsited regularly now... lots of insrurance scam going on..... Thank God my device got rescused....
Note: The title of this guide is Enabling LTE bands, but actually, it's for LTE and for HSDPA bands.
This is something near and dear to me, as I travel the world somewhat and really prefer to have only one phone.
I spent all day figuring out how to add more LTE bands to this phone (I have a bootloader unlocked H815, European version, so please understand that it may not work with other versions, and simply can't even be attempted until you can root it.)
The model I own comes with the following bands:
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1900 / 2100
4G bands LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 20(800), 28(700)
I noticed, however, in the hidden testing menu (277634#*#, Field Test, Modem Settings, Network Mode), the following extra bands, none of which worked:
WCDMA 800, WCDMA AWS (1700/2100)
Along with the following extra LTE bands(277634#*#, Field Test, Modem Settings, LTE Band Selection), again, none of which worked:
Band 12, 13, 25, 29, 40
The result?
Having enabled all of the LTE bands available in the testing menu, I was able to add WCDMA 800 and AWS bands, along with LTE band 40. Unfortunately at this time, Bands 12, 13, 25, and 29 do not work, even if enabled. However, a T-Mobile radio file might help for band 12 if it's a radio issue, or it could be a hardware difference in which case there's nothing we can do. I really don't know until I can test with it. I'm happy about the extra bands, though, because in the US I use T-Mobile, so AWS helps, and in Japan, band 800 is used. Maybe I'll use 40 if I go to China some time.
So how to actually do this?
Step 1: Unlock bootloader and root. You can find out how to do that in other threads.
Step 2: Install the LG USB Drivers. It comes with the LG PC Software.
Step 3: Download CDMAtool from here: http://cdmatool.com/ A free trial works fine for this.
Step 4: Make sure you have adb, and connect your G4 to your PC. In an adb shell, execute the following:
su
echo 1 > /sys/devices/platform/lg_diag_cmd/diag_enable
Step 5: Unplug and re-plug your USB cable. Your phone is now in diag mode (although you wouldn't know any better because you don't get any special device names in Device Manager.)
Step 6: Open DFS which you downloaded from CDMAtool.com Deal with making an account, etc. as you have to get into the software. Close the account window and the actual software will launch.
Step 7: Double click your device to put a checkmark by it in DFS.
Step 8: Click the Band tab. Choose RF BC Config at the bottom. Then, choose read.
Step 9: Make sure your bands are displayed. Check the extra bands you want to add. I recommend against enabling bands other than those mentioned in this thread, but you can try at your own risk (in fact, I'd be interested to see if any work!)
Step 10: Click Write.
Step 11: Click the LTE tab. Click Read. Check the bands you want to add, click write. Then, choose LTE BC Config DIV LTE #6829 at the bottom and repeat the process again there.
Step 12: Sometimes the write doesn't go through, and I have no idea why, but I found it helps to play with your phone for five minutes after writing. Also, I found that even if you're not changing bands, it's somehow necessary to flash HSDPA and LTE bands both in one go before restarting the phone. Otherwise strange things happened like losing bands. I was able to get them back though by re-flashing.
Step 13: Reboot your phone and pray.
Step 14: Go into the hidden menu and test the new bands. If they work, you will see SUCCESS when you press them in the test menu. (277634#*#, Field Test, Modem Settings, Network Mode/LTE Band Selection)
I hope this is useful to any other globetrotters!
That's gr8 tip!
Bands are tied to the hardware. Software tweaking won't add them. Not unless they're already part of the hardware, but disabled and hidden by LG for some reason. But that's doubtful.
It might tell you they've been added, but I highly doubt they'll actually work. But I'm no expert so LG may have done something weird here.
So. I have a T MOUS HTC One M8. We have a Qualcomm LTE radio that apparently has access to Band 12 which is TMOUS new 700 MHZ spectrum.
I am currently on band 4 through LTE discovery. Is there any method for adding Band 12 to this version of the HTC One M8.
What aspect of this guide can be used to add to the HTC One M8 T-Mobile Version Band 12?
Sent from my HTC One_M8 using XDA Free mobile app
the_scotsman said:
Bands are tied to the hardware. Software tweaking won't add them. Not unless they're already part of the hardware, but disabled and hidden by LG for some reason. But that's doubtful.
It might tell you they've been added, but I highly doubt they'll actually work. But I'm no expert so LG may have done something weird here.
Click to expand...
Click to collapse
The added bands do work (depending on the band) so in this phone's case, two new hsdpa bands and one new LTE band were add-able.
I was able to personally confirm HSDPA AWS working on T-Mobile US. The other two added ones I can also confirm because they are scanning on that frequency when using the LTE Band test menu, although there is no local network to attach to.
With other phones even more drastic success stories exist:
http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
But in this phone's case, the hardware supported more bands than were enabled, so enabling them was possible. I haven't been able to get particularly Band 12 working, probably because of either hardware or radio file, but it was nice to enable some other bands and see them work.
@the_scotsman the hardware in this case is able to do it normally, but LG has to pay a fee to unlock these bands which is why they're normally locked via firmware.
the_scotsman said:
Bands are tied to the hardware. Software tweaking won't add them. Not unless they're already part of the hardware, but disabled and hidden by LG for some reason. But that's doubtful.
It might tell you they've been added, but I highly doubt they'll actually work. But I'm no expert so LG may have done something weird here.
Click to expand...
Click to collapse
ixrs said:
@the_scotsman the hardware in this case is able to do it normally, but LG has to pay a fee to unlock these bands which is why they're normally locked via firmware.
Click to expand...
Click to collapse
I worked with Qualcomm chips before so the software setting enables the bands in software. the_scotsman is correct in that if there are no antennae on the phone for those bands then the OP's guide will not do anything. Seems that the OP has confirmed that for bands like HSPA Band 4 the antenna is present. It could also be that the LG didn't calibrate performance of the phone on those new bands for this model. That all depends on how they are manufacturing this phone which we will never know.
Anyone else tried this out? I use the Canadian equivalent of T-mobile so I would need HSPA Band 4. I'm wondering if I should buy the international version and get the unlocked bootloader or buy the locked bootloader version for Canada.
HighTowerDV said:
I worked with Qualcomm chips before so the software setting enables the bands in software. the_scotsman is correct in that if there are no antennae on the phone for those bands then the OP's guide will not do anything. Seems that the OP has confirmed that for bands like HSPA Band 4 the antenna is present. It could also be that the LG didn't calibrate performance of the phone on those new bands for this model. That all depends on how they are manufacturing this phone which we will never know.
Anyone else tried this out? I use the Canadian equivalent of T-mobile so I would need HSPA Band 4. I'm wondering if I should buy the international version and get the unlocked bootloader or buy the locked bootloader version for Canada.
Click to expand...
Click to collapse
I actually want to know the same. I need HSPA B4 (AWS). I want to buy LG G4 H15 version. If I can enable HSPA AWS band, then im on board to get this phone!
Not particularly useful as this requires root
kyle1867 said:
Not particularly useful as this requires root
Click to expand...
Click to collapse
Yes but the H815 from Europe can be rooted easily so this is an option if you bought this model of the G4.
LimitsX said:
I actually want to know the same. I need HSPA B4 (AWS). I want to buy LG G4 H15 version. If I can enable HSPA AWS band, then im on board to get this phone!
Click to expand...
Click to collapse
I ended up with the Canadian version in the end. Turns out the H812 has all the canadian bands turned on and once you unlock the device you can go from a carrier who only uses HSPA(AWS) to one that uses LTE without any rooting or enabling bands. Seems at least for the Canadian version all the bands for all Canadian carriers was turned on.
duraaraa said:
The added bands do work (depending on the band) so in this phone's case, two new hsdpa bands and one new LTE band were add-able.
I was able to personally confirm HSDPA AWS working on T-Mobile US. The other two added ones I can also confirm because they are scanning on that frequency when using the LTE Band test menu, although there is no local network to attach to.
With other phones even more drastic success stories exist:
http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
But in this phone's case, the hardware supported more bands than were enabled, so enabling them was possible. I haven't been able to get particularly Band 12 working, probably because of either hardware or radio file, but it was nice to enable some other bands and see them work.
Click to expand...
Click to collapse
Were you in a confirmed Band 12 area? Or did it say "fail" and not even scan it?
If he had a H811 model, Band 12 is enabled.. I had Band 12 LTE when I was in the US in the Maryland/DC Area..
Sorry for late reply. It said 'fail' and didn't scan. This is European H815. It's now bricked because I played with it too much.
Has anyone tried this on the VS986? It seems that band 2 is locked even though it's listed as a supported band. When using a T-Mobile SIM I only get LTE in band 4 areas and not band 2/12.
geoff5093 said:
Has anyone tried this on the VS986? It seems that band 2 is locked even though it's listed as a supported band. When using a T-Mobile SIM I only get LTE in band 4 areas and not band 2/12.
Click to expand...
Click to collapse
Seeing as how the first prerequisite is an unlocked BL, I don't think this would work :/
Dennisg34 said:
Seeing as how the first prerequisite is an unlocked BL, I don't think this would work :/
Click to expand...
Click to collapse
On the G3 you were able to use the HiddenMenu via a root-capable shortcut app, but now we can't access it as we get a FC. I skimmed this and didn't see the unlocked BL requirement, my bad!
@duraaraa How do you know if they're "working" exactly?
In the field test menu on my rooted H818P under LTE Band Selection, I have listed 1,2,3,4,5,7,8,12,13,17,20,25,28,29,40, half of which say "FAIL" when you tap on them, including band 28, which is LTE700 in Australia (FDD)...yet this phones' specs indicate this works...so I'm a little baffled?!
I don't have an unlocked bootloader (obviously), so I guess that means I'm no hope of performing anything successful in terms of accessing other bands?
RoOSTA
roosta said:
@duraaraa How do you know if they're "working" exactly?
In the field test menu on my rooted H818P under LTE Band Selection, I have listed 1,2,3,4,5,7,8,12,13,17,20,25,28,29,40, half of which say "FAIL" when you tap on them, including band 28, which is LTE700 in Australia (FDD)...yet this phones' specs indicate this works...so I'm a little baffled?!
I don't have an unlocked bootloader (obviously), so I guess that means I'm no hope of performing anything successful in terms of accessing other bands?
RoOSTA
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Well, they went from saying "FAIL" when chosen, to trying to find a signal. Not being in a Band 40 country, I can't be sure, of course, but my assumption is, since it became the same as all other bands which were to be supported by the phone, by not saying "FAIL," that it would work.
However, if you are sure that band 28 is working on your phone, and it still says FAIL, this opens the door to having more working than I thought, so it's certainly interesting! Sadly, as I mentioned before, my phone is currently unrecoverably bricked, so I have to wait for some kind of way out of the brick to continue this testing. Ironically, I'm going to China in August so I could have tested band 40
duraaraa said:
Well, they went from saying "FAIL" when chosen, to trying to find a signal. Not being in a Band 40 country, I can't be sure, of course, but my assumption is, since it became the same as all other bands which were to be supported by the phone, by not saying "FAIL," that it would work.
However, if you are sure that band 28 is working on your phone, and it still says FAIL, this opens the door to having more working than I thought, so it's certainly interesting! Sadly, as I mentioned before, my phone is currently unrecoverably bricked, so I have to wait for some kind of way out of the brick to continue this testing. Ironically, I'm going to China in August so I could have tested band 40
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Click to collapse
The problem I've discovered is band 28 (700mhz FDD) SHOULD be working on the H818P be default/stock....yet after root and accessing hidden menu, still says "FAIL"
Thats a huge worry, as the LG sticker with IMEI (etc) indicates it should work on that band!
Really hope unlocked bootloader is coming soon for H818P. Confirmed in the DUAL SIM thread, that phone *DOES* support 700Mhz bandwith...but for countries that probably have 100% of their population that DO NOT even own or sell this phone. Band 17 is supported, not Band 28 (densely populated countrieslike Aus, NZ etc). @duraaraa
Really need to unlock band 28!
RoOSTA
My phone can't connect to my current carrier LTE band. I have done some research and my carrier LTE Band is 17. The problem is that when I try to find how to enable it, it only appears solutions for previous models such as M9 or M8. Is there a way to enable LTE band 17 in this phone? (Also, my knowledge in this matter is low, but I my phone is rooted)
Look here
Hi.
I want to buy an LG V20 h910 Unlocked, but I need Band 3 & 7 for my home network and possibly (when roaming on holiday) Band 20.
Various websites list at least Band 3 & 7 as being supported.
However, on the LG USA website, it says:
"LTE Bands 2/4/5/12/29/30, Roaming 1/3/7/20, and CA"
Will it work on my network, given that I will be using Band 3/7 in my home network, not just when roaming?
Thanks in advance
I have a ta-1083 with bands b7 and b28 blocked, I've searched in several places on google and still could not find something that can release these bands,
Has anyone with this problem been able to solve this problem?
I like the device, but it's already boring with this situation
Thank you all
No way. It's not going to happen. Quit wasting your time and buy another phone that has the bands you need.
Thanks for the answer, and this is very sad to read
6.1 plus supports all the bands. You can use this code *#*#4636#*#* to change bands and it works.
gopu5 said:
6.1 plus supports all the bands. You can use this code *#*#4636#*#* to change bands and it works.
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Click to collapse
Yes, it runs on 4g, but in bands like b5 and b3, but these are not standard here in Brazil, the network with the largest coverage is b7 that runs at 2600mhz,
So it fluctuates a lot between bands and often loses the signal altogether
I've changed a lot in these settings, but it doesn't solve 100%
JavaDroid_ said:
Yes, it runs on 4g, but in bands like b5 and b3, but these are not standard here in Brazil, the network with the largest coverage is b7 that runs at 2600mhz,
So it fluctuates a lot between bands and often loses the signal altogether
I've changed a lot in these settings, but it doesn't solve 100%
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Click to collapse
LTE only option you can choose
gopu5 said:
6.1 plus supports all the bands. You can use this code *#*#4636#*#* to change bands and it works.
Click to expand...
Click to collapse
No, you don't know what a band is. You can't use the test menu to add additional LTE bands. Kindly refrain from posting this idiocy here.
I know what is LTE Bands. 6.1 Plus supports all the bands but the fact it is configured in such a way the user can't change it hence the network switches bands automatically.
The LTE Only option configure the network to the 4G but yes you don't have the option to lock a particular frequency unlike other stock Android devices.
I dont know about other countries but here in India I use Jio 4G with 6.1 Plus my phone locks into 850Mhz , 1800Mhz & 2300Mhz (Jio supports it) simultaneously depending upon the conditions in my location.
The Android one might have disabled advanced band locking (FDD & TDD) feature. I'm not talking idiocy here.
gopu5 said:
I know what is LTE Bands. 6.1 Plus supports all the bands but the fact it is configured in such a way the user can't change it hence the network switches bands automatically.
The LTE Only option configure the network to the 4G but yes you don't have the option to lock a particular frequency unlike other stock Android devices.
I dont know about other countries but here in India I use Jio 4G with 6.1 Plus my phone locks into 850Mhz , 1800Mhz & 2300Mhz (Jio supports it) simultaneously depending upon the conditions in my location.
The Android one might have disabled advanced band locking (FDD & TDD) feature. I'm not talking idiocy here.
Click to expand...
Click to collapse
You are not talking about the same thing. The OP of this thread wanted to unlock bands that this phone doesn't normally support. We're not talking about "band locking".
Oh yeah this doesn't supports 2600Mhz