Hi, I have an S5830 (Baseband version S5830XWKT3). This phone operates on 900/2100 for 3G. Is there a way to change the frequency band to 850/1900?
I read somewhere it might be possible by flashing the modem. Can somebody confirm this? What modem should I try? As far as I can tell all modems listed on http://forum.xda-developers.com/showthread.php?t=1289830 operate on 900/2100.
Depends, the frecuency for 3g is limited by Hardware. Flashing modems is mostly to keep your Hardware defined frecuencies with correct configuration:
A Latin model ace (5830L) might not catch the correct latin frecuencies when flashed with European firmwares, so you Flash a Latin modem to make it work. But the phone won't catch European frecuencies even with European modem/firmware because of Hardware limitations. This also goes the other way around.
Most European phones have Hardware support for different European frecuencies, just flash your region's modem (which can be extracted from fiemware, just open it with 7zip or something)
Hope this answers your question.
You'll just need to install a Latin American Modem
Try downloading this one http://www.sammobile.com/firmware/?page=8&view=2553
which modem to flash
Good day gents and ladies,
What I would like to know about modems and firmware is basically which modem Should I flash if I want to change my frecuency from 900Mhz to 850 and vice versa. For example I have a Samsung galaxy ace 2 gt-i8160 with a 900 MHz frequency GSM, HSDPA, UMTS. But in order to get mobile internet in 3G I need to have the modem firmware that corresponds to my telephone model and frequency of 850 MHz.
I know I can extract it with 7zip and flash with Odin but where do I find the correct firmware so I can do this? Can anyone please help? I've read and looked everywhere for possible solutions but nothing. Also, is it possible to flash a Latin modem on my phone without bricking it? I know if I flash all the firmware with,let's say, an i8160L on my i8160 galaxy ace 2 I'll brick it... But what will just one part of it do?
Thanks an advance for your time and help!!!
I got into servicemode by *#*#197328640#*#* .
UMTS RF NV,I can get parameter info...but no parameter info for GSM RF NV(menu not exist)."RF NV write" menu not exist too.
IMEI and base band normal.and now ,I lost signal.I guess that I have to wite NVM file into my phone,but where can I get it?
thank you so much.
Hi,
can You help me pls with ny LTE i9305 S3? I have problem with signal (antena OK, any sim any network), is just good outside but whan I go somwhere in house, is very bad or stop working network. I am not sure if can be some chip on motherboard problem, or if I solve this problem by some flash.
Thanks
Does it happen when you go inside in any place or just in your house? If it's just in your house then clearly it is just a problem of coverage on your area. I9305 international version supports bands 800, 1800 & 2600 for LTE where both 1800 and 2600 have bad coverage inside buildings. Check as another test if selecting 2g (pure GSM 900) you still have bad coverage. Can you try with a SIM of another carrier? This could also be the definitive test.
If it is a common problem (anywhere, any carrier...), then maybe you can solve it by flashing with Odin a different modem baseband (also called radio).
You have some basebands for download here:
http://sourceforge.net/projects/djb-tgp/files/CWM_Flashables/Modems/4.3 Modems/
I'm using the XXUENA2 with very good results, been used before others also with no major problems (XXUEMK1 and XXUFNI3 for example).
This is my "About device" screenshot where you can see the Baseband I'm using. Works fine in Europe as well as in Brasil:
https://mega.nz/#!Mh1RkbAY!k7l1vTQlxlas5S6OopO9054X-5P7yBpkJrXL_bv5-Fw
-jc
juliancarney said:
Does it happen when you go inside in any place or just in your house? If it's just in your house then clearly it is just a problem of coverage on your area. I9305 international version supports bands 800, 1800 & 2600 for LTE where both 1800 and 2600 have bad coverage inside buildings. Check as another test if selecting 2g (pure GSM 900) you still have bad coverage. Can you try with a SIM of another carrier? This could also be the definitive test.
If it is a common problem (anywhere, any carrier...), then maybe you can solve it by flashing with Odin a different modem baseband (also called radio).
You have some basebands for download here:
http://sourceforge.net/projects/djb-tgp/files/CWM_Flashables/Modems/4.3 Modems/
I'm using the XXUENA2 with very good results, been used before others also with no major problems (XXUEMK1 and XXUFNI3 for example).
This is my "About device" screenshot where you can see the Baseband I'm using. Works fine in Europe as well as in Brasil:
https://mega.nz/#!Mh1RkbAY!k7l1vTQlxlas5S6OopO9054X-5P7yBpkJrXL_bv5-Fw
-jc
Click to expand...
Click to collapse
Hi, thanks for Your reply
my problem is in house, but anyway problem with signal is without any sim always.
So I have now 4.4.4 and pls can You show me where I can download good one modem for this Android for my LTE? I´ll try it
thanks so much
EDIT: I have one. Is South Africa 4.3, there is XXUENA2 Modem, so I´ll try it and let You know.
EDIT2: So I have problem, I can´t downgrade 4.4.4 to 4.3 because will EFS faulty, so You have some idea how I can choose repair my modem for signal repair?
Hey Paul...
1) About signal: how do you expect to get signal without SIM? Or maybe are you meaning signal for just the 112 emergency call?
2) Modem/baseband: I already provided the link in my original post, check it.
3) No need to downgrade. You will only flash the modem/baseband without touching any partition, neither the ROM nor the EFS. You can do that via Odin (check any Odin How-To document -search Google-) or via the recovery if you have TFRT or QWM (at recovery menu select flash zip file and choose the one for the modem -you need to copy the zip file previously to your sd card or internal memory).
Paul Koty said:
Hi, thanks for Your reply
my problem is in house, but anyway problem with signal is without any sim always.
So I have now 4.4.4 and pls can You show me where I can download good one modem for this Android for my LTE? I´ll try it
thanks so much
EDIT: I have one. Is South Africa 4.3, there is XXUENA2 Modem, so I´ll try it and let You know.
EDIT2: So I have problem, I can´t downgrade 4.4.4 to 4.3 because will EFS faulty, so You have some idea how I can choose repair my modem for signal repair?
Click to expand...
Click to collapse
Signal problem
Hello.Sir I have a s3 i9305 when i am on LTE auto network mode then i was unable to make any phone call it always show wrong mmi code or connection problem and then it lost signals after that i rebot it then it pick the network can you tell me how to fix
Band 28 can be force enabled via Network Signal Guru and works, but it does not persist upon exiting the app.
Is there any method to do so permanently?
So far:
1) "EfsTools.exe setModemConfig -p lte.json" does not work with either the WW or CN+b28 configs.
2) QPST 2.7 does not read the modem configs properly
3) QXDM does not read the LTE files, returns an error. Also the newest version on xda appears to be from 2009.
4) DFS tools fails to do anything. It reads all bands as active and setting bands to write didnt do anything
5) network signal guru settings do not persist upon exiting the app, but can be used to temporarily enable b28 for testing purposes. For best results, disable all other LTE bands.
6) /policyman/ files do not contain anything pending to band28, using "<include> 28 </include>" in carrier_policy_original.xml_Subscription01 does nothing.
7) band 28 is apparently enabled by default on SIM2 (thanks @attachsnow ), but this is incompatible with homerSP's VoLTE/VoWi-FI guide???
I suspect there's a hidden file that temporarily overwrites the main config files every boot, bit i lack the skill to find out. Either that, or SIM1 has some special configs or hardware issues with B28 that SIM2 does not
Have the same problem here. I found that sim 2 can use band 28 but not in sim 1.
Could you share more information for this?
Maybe we can found some files in vendor folder that is the same as country value.
attachsnow said:
Have the same problem here. I found that sim 2 can use band 28 but not in sim 1.
Could you share more information for this?
Maybe we can found some files in vendor folder that is the same as country value.
Click to expand...
Click to collapse
I'm no android developer, just a "power user" at best. I merely tested every guide for enabling VoLTE or bands for any android phone on xda I could find. I wouldn't have the skill to make up a new method.
Band 28 is detected on SIM2 without needing network guru app's lock, but i cannot get the VoLTE guide to work with it. Guess it's still something, maybe we can force volte on sim2.
I've tried a bunch of things to enable bands myself, including band 28, but I have yet to find a solution - anything I do just seems to revert when rebooting and I have no clue what causes that.
I have updated EfsTools to allow writing the settings for the second SIM, you can find it here: https://github.com/HomerSp/EfsTools/releases/tag/0.10-modded-1.2.
Simply download that, and run this, and you should be good to go on the second SIM slot (no need to re-run the other commands):
Code:
EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -s 1
Now I'm wondering what restrictions are on SIM2 as it appears to only detect 3g b5 and 4g b28? I will test a bit further
deltarz said:
Now I'm wondering what restrictions are on SIM2 as it appears to only detect 3g b5 and 4g b28? I will test a bit further
Click to expand...
Click to collapse
Seems to work fine here, though I get the same exact bands enabled as I do on SIM1, so there's sadly no difference there.
Small update: I'm not entirely sure we can completely trust the list of LTE bands listed Network Signal guru. I say this because toggling the bands there doesn't seem to do anything, but more importantly, I modified /policyman/carrier_policy.xml and removed the LTE band I'm usually connected to (B1) and rebooted. After booting again it would no longer connect to LTE, but this wasn't reflected at all in Network Signal Guru - it still had all bands except 28 ticked.
As a test you could try writing this to efs:
https://gist.github.com/dc57c830fef5a0690709b3a95842bafa
Code:
EfsTools.exe writeFile -i carrier_policy.xml -o /policyman/carrier_policy.xml
That will disable all bands except B28. My carrier doesn't support that band, so I can't check if it works myself.
Here's the stock carrier_policy.xml if you want to restore it after testing:
https://gist.github.com/cb4cd5114013add0432eeb1afdc26ce9
HomerSp said:
Small update: I'm not entirely sure we can completely trust the list of LTE bands listed Network Signal guru. I say this because toggling the bands there doesn't seem to do anything, but more importantly, I modified /policyman/carrier_policy.xml and removed the LTE band I'm usually connected to (B1) and rebooted. After booting again it would no longer connect to LTE, but this wasn't reflected at all in Network Signal Guru - it still had all bands except 28 ticked.
As a test you could try writing this to efs:
https://gist.github.com/dc57c830fef5a0690709b3a95842bafa
Code:
EfsTools.exe writeFile -i carrier_policy.xml -o /policyman/carrier_policy.xml
That will disable all bands except B28. My carrier doesn't support that band, so I can't check if it works myself.
Here's the stock carrier_policy.xml if you want to restore it after testing:
https://gist.github.com/cb4cd5114013add0432eeb1afdc26ce9
Click to expand...
Click to collapse
I agree. Well, it's not that important anymore but, Network Signal Guru's bands do not apply to SIM2. It still shows B28 as disabled. Forcing toggles do nothing to anything in SIM2 besides forcing a reconnect on both SIMs. That and how the bands never persist upon exiting the app for SIM1 does imply that it can't be trusted whenever things are changed.
Anyway, I can connect to b 3,5,7 & 28 for 4G just fine, which is all of Telstra. They do have some rare b1 & b8 sites but I don't know where they are to test that. However, I would assume they work. 3G is harder to test as they only use B3.
If you need any further testing on B28 matters, let me know.
For now, the SIM2 workaround is good enough. Highly doubt there'll come a time where the SIM2 slot dies before anything else breaks or the phone is replaced, or the situational requirement of two B28 SIMs.
If we use Network Signal guru to check B28 only on sim 1 slot, use NetMonster app that it shows B28 is connected.
But there is no CA with B28. So it has a little difference with sim 2 slot.
Is there any update?
If I root my phone, will network guru open band 20 on my UK version phone?
On kimovil site they say the tencent ultimate version (512gb/12gb) ram has all bands, including 28 and MiMO 4x4. Anyone can confirm this, please? Thanks in advance! ROG Phone 2 512gb/12gb on Kimovil
Had B28 working with WW rom on Tencent phone in second sim slot. Now updated to Android 10 second slot fix is broken, that band is gone now.
I fastboot back to Android 9 with raw rom and that didn't bring back b28. Have no idea where to go from here, I was relieved to finally have 4G where I live.
onlyadequate said:
Had B28 working with WW rom on Tencent phone in second sim slot. Now updated to Android 10 second slot fix is broken, that band is gone now.
I fastboot back to Android 9 with raw rom and that didn't bring back b28. Have no idea where to go from here, I was relieved to finally have 4G where I live.
Click to expand...
Click to collapse
Yes, I found that android 10 will let second slot missing Band 28. Could you share your flash back android 9 method? Are you using one raw file or 21 img file? Thank you.
attachsnow said:
Yes, I found that android 10 will let second slot missing Band 28. Could you share your flash back android 9 method? Are you using one raw file or 21 img file? Thank you.
Click to expand...
Click to collapse
Went to this thread and downloaded the first WW raw https://forum.xda-developers.com/rog-phone-2/how-to/1910-64-ww-update-t4021947 put phone into fastboot mode, flashall_AFT.cmd back to Android 9. Note that my bootloader is locked, but from looking around it seemed like I didn't need to unlock it to roll back.
Sorry don't know what 21 image file is, I'm new to this stuff.
onlyadequate said:
Went to this thread and downloaded the first WW raw https://forum.xda-developers.com/rog-phone-2/how-to/1910-64-ww-update-t4021947 put phone into fastboot mode, flashall_AFT.cmd back to Android 9. Note that my bootloader is locked, but from looking around it seemed like I didn't need to unlock it to roll back.
Sorry don't know what 21 image file is, I'm new to this stuff.
Click to expand...
Click to collapse
Could you please provide fastboot.log file after you rollback?
Maybe we could see which file cannot flash back.
attachsnow said:
Could you please provide fastboot.log file after you rollback?
Maybe we could see which file cannot flash back.
Click to expand...
Click to collapse
Here's the log file
https://pastebin.com/acCDD66i
onlyadequate said:
Here's the log file
https://pastebin.com/acCDD66i
Click to expand...
Click to collapse
Hi, just a guess. Have you ever try flash CN android 9 Rom again then flash back to WW?
attachsnow said:
Hi, just a guess. Have you ever try flash CN android 9 Rom again then flash back to WW?
Click to expand...
Click to collapse
I've thought about flashing back to cn, but haven't done it yet. Use a different phone now but I'll try your idea sometime
In the area I live, the LTE towers use a band that is not available in my Mi 9 Lite (Global), and I'm trying to enable the band available in my area.
I started following this guide, but when it comes to open diag, I'm still receiving the error message, saying the diag failed to open, after I type the sequence *#*#717717#*#*, even after following the steps for rooted phones, using adb.
Can anybody help me on how to enable diag on Mi 9 Lite?
Buiatti said:
In the area I live, the LTE towers use a band that is not available in my Mi 9 Lite (Global), and I'm trying to enable the band available in my area.
I started following this guide, but when it comes to open diag, I'm still receiving the error message, saying the diag failed to open, after I type the sequence *#*#717717#*#*, even after following the steps for rooted phones, using adb.
Can anybody help me on how to enable diag on Mi 9 Lite?
Click to expand...
Click to collapse
I could be wrong but I don't think you can just "enable" a band on the phone if the radio chip doesn't actually support it.
Papercutzz said:
I could be wrong but I don't think you can just "enable" a band on the phone if the radio chip doesn't actually support it.
Click to expand...
Click to collapse
I have installed one ROM, that had all the bands available in my region, so I know this can be enabled for my phone. The only thing is, I don't want to be using the ROMs available, as I want to be using MIUI, as I got used to it by now, and I like it's functionalities.