Develop Bugs

BUG in update 4.4.3 for Nexus 7 2013 LTE!

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Got this morning the 4.4.3-update for my N7 2013 LTE; now it WON'T connect to Vodafone NL anymore...
More people have the same problem, that it won't connect to the provider anymore?

Can you try the previous radio and see if it is working?
Sent from my Nexus 4 using Tapatalk

cpanos said:
Can you try the previous radio and see if it is working?
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
I can't (my N7 is NOT rooted and I won't do this too)...

henklbr said:
Got this morning the 4.4.3-update for my N7 2013 LTE; now it WON'T connect to Vodafone NL anymore...
More people have the same problem, that it won't connect to the provider anymore?
Click to expand...
Click to collapse
I had exactly the same thing, and also with Vodafone NL. Although, I assume that's only a coincidence: when I try to search for other networks, I get a toast message with an error saying: "Error searching for networks".
Therefore, I took the radio image from the 4.4.2 factory image, flashed it to my N7, and then I got my mobile network connection back.

henklbr said:
I can't (my N7 is NOT rooted and I won't do this too)...
Click to expand...
Click to collapse
you dont need root to change radio

cpanos said:
you dont need root to change radio
Click to expand...
Click to collapse
I flashed an older radio image, and that one's working. However, since I see only 1 other person who has reported this problem over the past few days, I am wondering whether we have a defect in our hardware that emerges when using the new radio. If it would be purely software, I would expect a lot more reports about this defect.

franklinvv said:
I flashed an older radio image, and that one's working. However, since I see only 1 other person who has reported this problem over the past few days, I am wondering whether we have a defect in our hardware that emerges when using the new radio. If it would be purely software, I would expect a lot more reports about this defect.
Click to expand...
Click to collapse
If everything works with the old radio, Im guessing its most likely software. Cant test LTE right now, so I cant give you guys more feedback. But the fact that you both use the same provider might also be a factor. I would recommend trying out someone else's SIM (different provider) on the new radio and see how that goes.

cpanos said:
If everything works with the old radio, Im guessing its most likely software. Cant test LTE right now, so I cant give you guys more feedback. But the fact that you both use the same provider might also be a factor. I would recommend trying out someone else's SIM (different provider) on the new radio and see how that goes.
Click to expand...
Click to collapse
It seems, that our N7 have received the wrong baseband-version during the update!
Left is the update we've received in the NL, right is the update received in other countries!
Have a look at the baseband-version: the only difference is the "letter"! We should have received the "G", but we got the "H"!

henklbr said:
It seems, that our N7 have received the wrong baseband-version during the update!
Left is the update we've received in the NL, right is the update received in other countries!
Have a look at the baseband-version: the only difference is the "letter"! We should have received the "G", but we got the "H"!
Click to expand...
Click to collapse
Is the baseband on the right in the factory images? Did you try it?

cpanos said:
Is the baseband on the right in the factory images? Did you try it?
Click to expand...
Click to collapse
The baseband in the factory-image has the letter "Z"!

henklbr said:
The baseband in the factory-image has the letter "Z"!
Click to expand...
Click to collapse
yeap, its radio-deb-deb-z00_2.42.0_1204
did you try it?

cpanos said:
yeap, its radio-deb-deb-z00_2.42.0_1204
did you try it?
Click to expand...
Click to collapse
Not yet: my bootloader is still locked; have to unlock it 1st (then my device will be wiped :silly...
I'll do that when I've the time for it (probably this weekend)...

henklbr said:
Got this morning the 4.4.3-update for my N7 2013 LTE; now it WON'T connect to Vodafone NL anymore...
More people have the same problem, that it won't connect to the provider anymore?
Click to expand...
Click to collapse
Confirmed, I went several times between the 4.4.2 and 4.4.3 factory images and with a vodafone sim inserted on 4.4.3 it can even scan for networks anymore!

I have the same problem here and using Ziggo mobile. Smalband version DEB-H00_2.42.0_1204
Dont have a rooted Nexus or anything else, just standard. I'm pretty new with android so i really dont have a clue what to do.
Google support is not very helpfull just the basic thinks like deleting cache, restore.

Hellwig said:
I have the same problem here and using Ziggo mobile. Smalband version DEB-H00_2.42.0_1204
Dont have a rooted Nexus or anything else, just standard. I'm pretty new with android so i really dont have a clue what to do.
Google support is not very helpfull just the basic thinks like deleting cache, restore.
Click to expand...
Click to collapse
live with it, until an update comes along, or unlock and flash the 4.4.2 factory image

I have the same issue. Nexus 7 2013 LTE, tested with both Vodafone NL and Ziggo Mobiel SIM-cards: same issue.
What is the easiest way to revert to previous Android version (4.4.2)? I'm also non-rooted. Dataloss is no issue, since I just wiped my device to see if there was a user setting messing it up...
---
To downgrade:
- I needed to unlock my bootloader ("fastboot oem unlock"). This voids the warranty, which I don't have in NL anyway.
- I downloaded the files on this page: http://www.androidbeat.com/2013/11/flash-factory-image-nexus-device/
- I followd the steps to run 'flash-all' (after unzipping everything). This wipes all userdate (which was already gone).

Hellwig said:
I have the same problem here and using Ziggo mobile. Smalband version DEB-H00_2.42.0_1204
Dont have a rooted Nexus or anything else, just standard. I'm pretty new with android so i really dont have a clue what to do.
Google support is not very helpfull just the basic thinks like deleting cache, restore.
Click to expand...
Click to collapse
Ziggo appears to use the Vodafone network, so the bug could still be related to the interaction with Vodafone only.
Anyone on KPN or T-mobile? (I have the same problem and also am currently on Vodafone...)

abestrux said:
I think Ziggo uses the Vodafone network, so the bug could still be related to the interaction with Vodafone only. Anyone on KPN or T-mobile?
Click to expand...
Click to collapse
I was thinking the same, but still it is a software bug. I noticed that I was also unable to 'downgrade' the network type to '3G' in the buggy firmware. I could only select 4G. Just tested in 4.4.2 and I can select the lower version there.
If it is a Vodafone-only issue, I am very affraid that this will never be resolved...

Helsie said:
I was thinking the same, but still it is a software bug. I noticed that I was also unable to 'downgrade' the network type to '3G' in the buggy firmware. I could only select 4G. Just tested in 4.4.2 and I can select the lower version there.
If it is a Vodafone-only issue, I am very affraid that this will never be resolved...
Click to expand...
Click to collapse
Somewhere else was reported that the same device works with a Lebara SIM but not with a Vodafone SIM. Lebara uses the KPN network in the Netherlands, so somehow the bug is related to the Vodafone setup in some way .

I am back at 4.4.2. Vodafone NL and android 4.4.3 are not a good combination .

SM-G9600/DS firmware (Dual-sim)

Hi all, I am new to this and just did a bit of research but I still have some questions that you all might be able to answer..
So I just purchased a Chinese S9 due to the dual-sim capability, but of course there is no google play store and is other chinese bloatware.
I was going to change the firmware to another Snapdragon (US) capable firmware, but there is none available for dual-sim, which is the main reason I bought the phone.
My question, is the Hong Kong version of SM-G9600/DS firmware going to allow me to use the google playstore?
If so, what is the difference between "G9600ZHU2ARC6_CL13087568_QB17462476_REV01_user_low_ship_MULTI_CERT_meta.zip (Oreo/HongKong)" and "G9600ZHU1ARC1_CL13087568_QB17191487_REV01_user_low_ship_MULTI_CERT_meta.zip (Oreo/HongKong)"?
If all else fails, will separately downloading/installing the google playstore on the original chinese firmware be functional?
Thanks in advance!

Yes HK firmware comes with playstore and sorry I don't know the difference for the 2 different firmware, the latest one is ARC6

Zenroid said:
Yes HK firmware comes with playstore and sorry I don't know the difference for the 2 different firmware, the latest one is ARC6
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Click to collapse
Thank you Zenroid.
I was thinking about it, but is the HK version considered the "International Version" and thus using the Exynos chipset as opposed to the China/USA Snapdragon?
edit: Did a quick google search and the HK version has the Snapdragon chipset. I guess I will need to look around for the HK dual-sim firmware.

The SM-G9600 firmware has the SM-G9600/DS firmware, I installed the SM-G9600 G9600ZHU2ARD3 CHO firmware (Chile) in a dual sim and I have no problems, it works fine, it is the version without blotware for Latin America, it has monthly updates (currently has the security patch of April), has Play Store and all the Samsung apps.

You're absolutely right Dark_3g. The SM-G9600 is for both China/HK and Latin America, luckily.
So I downloaded the HK firmware for SM-G9600 (arc6) and loaded into my phone and everything works perfectly.
Many thanks guys!

Dark_3g said:
The SM-G9600 firmware has the SM-G9600/DS firmware, I installed the SM-G9600 G9600ZHU2ARD3 CHO firmware (Chile) in a dual sim and I have no problems, it works fine, it is the version without blotware for Latin America, it has monthly updates (currently has the security patch of April), has Play Store and all the Samsung apps.
Click to expand...
Click to collapse
onijomiko said:
You're absolutely right Dark_3g. The SM-G9600 is for both China/HK and Latin America, luckily.
So I downloaded the HK firmware for SM-G9600 (arc6) and loaded into my phone and everything works perfectly.
Many thanks guys!
Click to expand...
Click to collapse
When you flashed the new firmware, did it trip KNOX? I know it shouldn't, since it's official, but that doesn't stop my brain from telling me to worry about it, haha.

onijomiko said:
You're absolutely right Dark_3g. The SM-G9600 is for both China/HK and Latin America, luckily.
So I downloaded the HK firmware for SM-G9600 (arc6) and loaded into my phone and everything works perfectly.
Many thanks guys!
Click to expand...
Click to collapse
onijomiko - I have the same question. Does it trip Knox? What is the filename or version number of the firmware you installed? Does it support VoLTE and Wifi calling, for either one or both SIMs?
I bought a HK version phone from a retailer in the US. As soon as I started it, it prompted me an OTA upgrade which I did. Now, it's at baseband version G9600ZCU2ARE6.
If I go to software updates, it says "The latest version updates have already been installed. Current version: G9600ZHU2ARE6/G9600OWO2ARE6/G9600ZCU2ARE6". I'm not sure why it lists three different version numbers here. From a quick google search, samsung-firmware.org shows:
PDA/AP Version G9600ZHU2ARE6
CSC Version G9600OWO2ARE6
MODEM/CP Version G9600ZCU2ARE6
Region COO — Colombia
If I look up the firmware version for Hong Kong, the CSC version shows G9600TGY2ARE6 but the other two version numbers are the same as what I have. Is this what onijomiko installed?
Do either of you onijomiko or Dark_3g have VoLTE and Wifi calling in your versions?

sentron said:
onijomiko - I have the same question. Does it trip Knox? What is the filename or version number of the firmware you installed? Does it support VoLTE and Wifi calling, for either one or both SIMs?
I bought a HK version phone from a retailer in the US. As soon as I started it, it prompted me an OTA upgrade which I did. Now, it's at baseband version G9600ZCU2ARE6.
If I go to software updates, it says "The latest version updates have already been installed. Current version: G9600ZHU2ARE6/G9600OWO2ARE6/G9600ZCU2ARE6". I'm not sure why it lists three different version numbers here. From a quick google search, samsung-firmware.org shows:
PDA/AP Version G9600ZHU2ARE6
CSC Version G9600OWO2ARE6
MODEM/CP Version G9600ZCU2ARE6
Region COO — Colombia
If I look up the firmware version for Hong Kong, the CSC version shows G9600TGY2ARE6 but the other two version numbers are the same as what I have. Is this what onijomiko installed?
Do either of you onijomiko or Dark_3g have VoLTE and Wifi calling in your versions?
Click to expand...
Click to collapse
Flashing the official firmwares does NOT trip Knox. I've done it a few times over the last day or two. (Read about all my adventures in this thread).
The three model numbers are the PDA version (the actual firmware/OS), the CSC (country-specific stuff; in your case it's the most recent OWO one, which is the international unlocked version for Latin America; I'm not totally sure about how all these work though--trying to figure out how to get the right one set up on my phone), and the CP (modem firmware, same for all Qualcomm S9's, I think), respectively.
Read up on about Samsung's "CSC" system. If you find any particularly good resources, send them my way too! The way they have designed it is kind of confusing to me.
I'm not sure about VoLTE/Wifi calling. Haven't tried it yet on my phone, sorry. Hope it works though! :fingers-crossed:

nelsyv said:
Flashing the official firmwares does NOT trip Knox. I've done it a few times over the last day or two. (Read about all my adventures in this thread).
The three model numbers are the PDA version (the actual firmware/OS), the CSC (country-specific stuff; in your case it's the most recent OWO one, which is the international unlocked version for Latin America; I'm not totally sure about how all these work though--trying to figure out how to get the right one set up on my phone), and the CP (modem firmware, same for all Qualcomm S9's, I think), respectively.
Read up on about Samsung's "CSC" system. If you find any particularly good resources, send them my way too! The way they have designed it is kind of confusing to me.
I'm not sure about VoLTE/Wifi calling. Haven't tried it yet on my phone, sorry. Hope it works though! :fingers-crossed:
Click to expand...
Click to collapse
Thanks a lot for the info. Do you at least see VoLTE and Wifi Calling menu items under 'Settings > Connections > More settings' after flashing the HK ROM? This will help me to decide to flash it. I'm reading about CSC - will report back if I find anything new that you haven't mentioned in the other thread.

sentron said:
Thanks a lot for the info. Do you at least see VoLTE and Wifi Calling menu items under 'Settings > Connections > More settings' after flashing the HK ROM? This will help me to decide to flash it. I'm reading about CSC - will report back if I find anything new that you haven't mentioned in the other thread.
Click to expand...
Click to collapse
Doesn't seem to be the case with the MXO 2ARC6 firmware (Updato). However, my CSC was also listed as TTT still, so going to reflash and see if I can get it to change. Forgot to disable FRP lock last time, oops, hopefully a reflash with US sim in slot, FRP disabled, followed by factory data reset (or two) will do the trick.
Didn't check when I had the HK firmware flashed, it's been a while since I used it.
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EDIT: Couldn't get my CSC to change away from TTT, so I'm not sure which one is taking. Posted in another thread about it, looking for solutions...

just download playstore apk and forget about flashing
just download the playstore apk. it worked for me. sm g9650

Dark_3g said:
The SM-G9600 firmware has the SM-G9600/DS firmware, I installed the SM-G9600 G9600ZHU2ARD3 CHO firmware (Chile) in a dual sim and I have no problems, it works fine, it is the version without blotware for Latin America, it has monthly updates (currently has the security patch of April), has Play Store and all the Samsung apps.
Click to expand...
Click to collapse
I also have the G9600 snapdragon, I'm from Mexico and I'm looking for a different firm from my telcel operator, so you say the one in Chile works, do you know if there is any firmware with android 9 for the G9600 / DS?

Is this LG G7 legit?

I just got a G7 from eBay. On the back it has sticker says LG-G710PM but when I check under the hardware info in setting it says "LG-G710ULM" and the S/N is blank. It has a weird software version too
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Does anyone know what is this firmware? I'm guessing they installed some custom ROM onto the Sprint LG-G710PM to unlock it.

Yes, this is legit. Someone flashed the European firmware onto the device.

Is there a way to update the phone? or what KDZ can i use ? got one also and have the same security patch?

Hey I have the same one from ebay. Won’t work with sprint, doesn’t have bars. Could this European firmware have something to do with it?

I think its not the European version software these phones have, it must be US version ULM (Unlocked) FIRMWARE software, But the phone is a G710PM (Sprint) Hardware model. There must be an issue with sprint i think and that's why you have no BARS, If not contact the ebay SELLER.

Radha09 said:
I think its not the European version software these phones have, it must be US version ULM (Unlocked) FIRMWARE software, But the phone is a G710PM (Sprint) Hardware model. There must be an issue with sprint i think and that's why you have no BARS, If not contact the ebay SELLER.
Click to expand...
Click to collapse
Have you tried sprint with yours? Is it working?
Why would it have different firmware from the hardware and will this cause issues?

X3am said:
Have you tried sprint with yours? Is it working?
Why would it have different firmware from the hardware and will this cause issues?
Click to expand...
Click to collapse
I don't actually know.... But I think I unlocks all bands there's this YouTuber that did that on a LG G6.... You should see his video.
I am using my g7 outside US....

X3am said:
Have you tried sprint with yours? Is it working?
Why would it have different firmware from the hardware and will this cause issues?
Click to expand...
Click to collapse
Did you get yours working with Sprint?

X3am said:
Have you tried sprint with yours? Is it working?
Why would it have different firmware from the hardware and will this cause issues?
Click to expand...
Click to collapse
justanyone said:
Did you get yours working with Sprint?
Click to expand...
Click to collapse
I followed Radha09's post https://forum.xda-developers.com/lg-g7-thinq/how-to/lg-g7-thinq-lgg710pm-to-g710ulm10g-t3861962 and magic! Sprint voice and text is now working.
Data actually isn't yet, but I imagine that I just need to fiddle a bit.

Anyone else have thoughts on this phone? I also just bought an LG G7 (USA Unlocked) from eBay seller yywireless and it has the exact info as the OP has. Price is great, but I'm concerned about the Security Patch Level showing "1 May 2018" and when I try to update the phone OTA it says it's already up to date. Wondering what are the risks if I keep the phone? S/N shows as blank also. Other that this it seems to work perfectly! Do we think the bootloader is still locked like other US phones or maybe it's unlocked and will allow a flash to an alternate ROM? I'm a newb, so looking for advice here on whether to keep the phone or not. Lots of these still listed on eBay as we speak... thanx.

justanyone said:
I followed Radha09's post https://forum.xda-developers.com/lg-g7-thinq/how-to/lg-g7-thinq-lgg710pm-to-g710ulm10g-t3861962 and magic! Sprint voice and text is now working.
Data actually isn't yet, but I imagine that I just need to fiddle a bit.
Click to expand...
Click to collapse
i flashed that same Fi firmware, but i can't get data to work on sprint, just voice and text. Did you figure this out?
---------- Post added at 04:48 PM ---------- Previous post was at 04:41 PM ----------
Does anyone have access to LG710PM (Sprint) firmware? I'm on ULM, but i need sprint.

bobloadmire said:
i flashed that same Fi firmware, but i can't get data to work on sprint, just voice and text. Did you figure this out?
---------- Post added at 04:48 PM ---------- Previous post was at 04:41 PM ----------
Does anyone have access to LG710PM (Sprint) firmware? I'm on ULM, but i need sprint.
Click to expand...
Click to collapse
Yes, it's now working on Sprint fully. Unfortunately I don't remember exactly what I did, but I think it was mainly APN settings, I was playing with the "secret menu" to select correct bands etc. but again if I remember correctly it was the APN settings that did it.

X3am said:
Hey I have the same one from ebay. Won’t work with sprint, doesn’t have bars. Could this European firmware have something to do with it?
Click to expand...
Click to collapse
what seller was it purchased from? i want to purchase one but a bit skeptical since they dont want to give out the imei for me to check.
---------- Post added at 08:34 PM ---------- Previous post was at 08:32 PM ----------
hytl said:
I just got a G7 from eBay. On the back it has sticker says LG-G710PM but when I check under the hardware info in setting it says "LG-G710ULM" and the S/N is blank. It has a weird software version too
Does anyone know what is this firmware? I'm guessing they installed some custom ROM onto the Sprint LG-G710PM to unlock it.
Click to expand...
Click to collapse
what seller was it purchased from? i want to purchase one but a bit skeptical since they dont want to give out the imei for me to check.

jobelaa said:
what seller was it purchased from? i want to purchase one but a bit skeptical since they dont want to give out the imei for me to check.
---------- Post added at 08:34 PM ---------- Previous post was at 08:32 PM ----------
what seller was it purchased from? i want to purchase one but a bit skeptical since they dont want to give out the imei for me to check.
Click to expand...
Click to collapse
almost any seller on ebay its selling Sprint Version with Crossflashed Firmware. gonna be very hard to find Non-Crossflashed one. maybe T-mobil one.

justanyone said:
I followed Radha09's post https://forum.xda-developers.com/lg-g7-thinq/how-to/lg-g7-thinq-lgg710pm-to-g710ulm10g-t3861962 and magic! Sprint voice and text is now working.
Data actually isn't yet, but I imagine that I just need to fiddle a bit.
Click to expand...
Click to collapse
The older FI kdz has issues with data, search on the g7 threads for the bootloader unlock and you will find 11g (newer oreo), then in same post you will find out how to get sprint data working.
tone_la said:
Anyone else have thoughts on this phone? I also just bought an LG G7 (USA Unlocked) from eBay seller yywireless and it has the exact info as the OP has. Price is great, but I'm concerned about the Security Patch Level showing "1 May 2018" and when I try to update the phone OTA it says it's already up to date. Wondering what are the risks if I keep the phone? S/N shows as blank also. Other that this it seems to work perfectly! Do we think the bootloader is still locked like other US phones or maybe it's unlocked and will allow a flash to an alternate ROM? I'm a newb, so looking for advice here on whether to keep the phone or not. Lots of these still listed on eBay as we speak... thanx.
Click to expand...
Click to collapse
Search on these g7 posts how to update the kdz with lgup
bobloadmire said:
i flashed that same Fi firmware, but i can't get data to work on sprint, just voice and text. Did you figure this out?
---------- Post added at 04:48 PM ---------- Previous post was at 04:41 PM ----------
Does anyone have access to LG710PM (Sprint) firmware? I'm on ULM, but i need sprint.
Click to expand...
Click to collapse
do the same as the other person i quoted to fix data.
Also 11g is not the newest, you can now update to 20e for pie and updated security patches

[SM-G9860] Is a Taiwan (BRI) S20+ technically identical to Hong Kong (TGY) S20+?

I bought a S20+ (SM-G9860, Snapdragon). It had a Taiwan CSC (BRI), I changed it to the Hongkong CSC (TGY) with Samkey (1 credit). For me it activates VoLTE and 5G. After changing the CSC a got an OTA update, which I installed. This changed the BASEBAND version to ATE5 (instead of ATCT). Bootloader/PDA/CSC are identical (BRI and TGY).
On reddit someone said changing his CSC from BRI->TGY increased his battery consumption (original thread). They suggestion that the BRI Taiwan version maybe missing antennas for the additional bands supported in HK firmware which could explain why there's a significant drain. Could this be right?
I am wondering are the Hong Kong and Taiwan versions of the S20+ hardware-wise identical? I am a bit 'worried' because I know the Hong Kong version support 5G 4200 Mhz and this frequency is not stated on the box of my Taiwan version:
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Hong Kong TGY (this version I got after changing CSC with Samkey):
Taiwan BRI (original out-of-the box firmware):
Thanks!

they are identical, and no, I don't have battery drain when changing to TGY. However, take note: when you change, you must change *both* the CSC & the firmware, and do clean factory reset afterwards. There is no drain, and 5G band also depend on the firmware *and* the CSC, so you must change both.

bluelavender said:
they are identical, and no, I don't have battery drain when changing to TGY. However, take note: when you change, you must change *both* the CSC & the firmware, and do clean factory reset afterwards. There is no drain, and 5G band also depend on the firmware *and* the CSC, so you must change both.
Click to expand...
Click to collapse
Once a new software update gets sent ota... Would that be considered as new firmware of the new CSC? I changed CSC from bri to TGY but never changed the firmware. After changing I got 5G which is what i changed for. I have got 1 new ota update since then. Do i still need to change firmware and if so how?

As far as I can see Firmware is already the same in BRI and TGY devices. So no need to change imo. Maybe someone can confirm?
https://www.sammobile.com/samsung/galaxy-s20-plus/firmware/#SM-G9860

Mittesh said:
Once a new software update gets sent ota... Would that be considered as new firmware of the new CSC? I changed CSC from bri to TGY but never changed the firmware. After changing I got 5G which is what i changed for. I have got 1 new ota update since then. Do i still need to change firmware and if so how?
Click to expand...
Click to collapse
No new firmware, this update only changed the baseband version to ATE5.

Mittesh said:
Once a new software update gets sent ota... Would that be considered as new firmware of the new CSC? I changed CSC from bri to TGY but never changed the firmware. After changing I got 5G which is what i changed for. I have got 1 new ota update since then. Do i still need to change firmware and if so how?
Click to expand...
Click to collapse
you have to. While, somehow, you can get ATE5 update (which is actually only baseband update), there's no guarantee future real firmware update will go to your set with differing firmware and CSC. There's another post from another guy in this forum who also end up updating the firmware, because error message with different csc and firmware in software update section.

But firmware is the same in Hong Kong TGY version and Taiwan BRI version. Completely identical.

bluelavender said:
you have to. While, somehow, you can get ATE5 update (which is actually only baseband update), there's no guarantee future real firmware update will go to your set with differing firmware and CSC. There's another post from another guy in this forum who also end up updating the firmware, because error message with different csc and firmware in software update section.
Click to expand...
Click to collapse
I really think that what you are saying is incorrect, there is no need to update the firmware in this specific case with TGY and BRI S20+'s. Let me illustrate this by a screenshot of the downloaded firmwares (both most recent versions) from Sammobile:
Look at the file sizes, the filenames, everything is 100% identical. The only difference is that de TGY CSC triggers the the baseband ATE5 update. So why should we flash an identical firmware after a CSC change BRI->TGY with Samkey?

Hi, when changing CSC, does it need also factory reset? I have BRI version and want caller ID back, but I don't want to lose any data during the process.
Thanks for answers.

Not necessary imo.

m0erty said:
Hi, when changing CSC, does it need also factory reset? I have BRI version and want caller ID back, but I don't want to lose any data during the process.
Thanks for answers.
Click to expand...
Click to collapse
No, you not need a factory reset after CSC change via Samkey.

ChromeFR said:
I really think that what you are saying is incorrect, there is no need to update the firmware in this specific case with TGY and BRI S20+'s. Let me illustrate this by a screenshot of the downloaded firmwares (both most recent versions) from Sammobile:
Look at the file sizes, the filenames, everything is 100% identical. The only difference is that de TGY CSC triggers the the baseband ATE5 update. So why should we flash an identical firmware after a CSC change BRI->TGY with Samkey?
Click to expand...
Click to collapse
As expected... No Odin firmware change needed to recieve updates.

Is VOLTE and WIFI Calling working on this model in your country...Please mention which country you are living...

niza2000in said:
Is VOLTE and WIFI Calling working on this model in your country...Please mention which country you are living...
Click to expand...
Click to collapse
I live in Romania and yes volte and vowifi are both working as expected. The one thing that you should know is that I had to manually add the apn for ims as in the screenshot below.

stefan243546 said:
I live in Romania and yes volte and vowifi are both working as expected. The one thing that you should know is that I had to manually add the apn for ims as in the screenshot below.
Click to expand...
Click to collapse
Thanks for your reply, it really help me to take decision.
Can you please re-upload the screenshot APN for IMS, i think its not properly uploaded and images are not visible.
Also do you have the option for adding Esim in this SD version.
Thanks

niza2000in said:
Thanks for your reply, it really help me to take decision.
Can you please re-upload the screenshot APN for IMS, i think its not properly uploaded and images are not visible.
Also do you have the option for adding Esim in this SD version.
Thanks
Click to expand...
Click to collapse
First off no esim sadly, and secondly the apn is specific for Orange Romania, so adding it to your phone will not make volte/vowifi work. You will have to take your carrier's apn from a friend who is in the same carrier or from the internet. Nevertheless I'll reupload the screenshots.
edit: the screenshots still seem to not be working, I'll give you a link to onedrive where I'll upload them: https://1drv.ms/f/s!AoksdHUtMyltgd15-duqZ_JyFMDzLw

stefan243546 said:
First off no esim sadly, and secondly the apn is specific for Orange Romania, so adding it to your phone will not make volte/vowifi work. You will have to take your carrier's apn from a friend who is in the same carrier or from the internet. Nevertheless I'll reupload the screenshots.
edit: the screenshots still seem to not be working, I'll give you a link to onedrive where I'll upload them: https://1drv.ms/f/s!AoksdHUtMyltgd15-duqZ_JyFMDzLw
Click to expand...
Click to collapse
No ESIM...
Thanks mate for reply....

Question Need help to Convert SM-F936U/DS ATT Fold 4 to Indian Fold 4 version?

So I am using AT&T version Zfold 4 model SM-F936U/DS in India and my software version is as follows:
Build number
SP2A.220305.013.F936USQU1AVGA
Service provider software version
SAOMC_SM-F936U_OYN_GCF_12_0003
GCF/GCF.GCF/XAA
Its stuck on android 12 May update.
I want to flash Indian firmware to make it Indian version of Z fold 4 for faster updates and enabling the call recorder.
What do I need to do? Any help will be appreciated. If this is answered anywhere please provide links to that thread and I will delete this one.
I am totally confused about CSC, firmware version, carrier version etc.

Not gonna happen without root, even then might be difficult.
The Indian model is a F936B model. Trying to flash the firmware on it is like trying to flash IOS on an android.
Did see a way to change CSC in the forum however I believe you needed to have the compatible variant as it needed the OXM ROM flashed 1st.

ultramag69 said:
Not gonna happen without root, even then might be difficult.
The Indian model is a F936B model. Trying to flash the firmware on it is like trying to flash IOS on an android.
Did see a way to change CSC in the forum however I believe you needed to have the compatible variant as it needed the OXM ROM flashed 1st.
Click to expand...
Click to collapse
Thanks for the reply. I am browsing the forums for a solution and so far have got nothing. I don't want to root the device as of now.

ultramag69 said:
Not gonna happen without root, even then might be difficult.
The Indian model is a F936B model. Trying to flash the firmware on it is like trying to flash IOS on an android.
Did see a way to change CSC in the forum however I believe you needed to have the compatible variant as it needed the OXM ROM flashed 1st.
Click to expand...
Click to collapse
Hii have a zfold f936b bought from eBay.
It says IMEI is 00000000 and when I insert sim nothing happens.
Any idea what are my options ?

Adv.Chirag said:
So I am using AT&T version Zfold 4 model SM-F936U/DS in India and my software version is as follows:
Build number
SP2A.220305.013.F936USQU1AVGA
Service provider software version
SAOMC_SM-F936U_OYN_GCF_12_0003
GCF/GCF.GCF/XAA
Its stuck on android 12 May update.
I want to flash Indian firmware to make it Indian version of Z fold 4 for faster updates and enabling the call recorder.
What do I need to do? Any help will be appreciated. If this is answered anywhere please provide links to that thread and I will delete this one.
I am totally confused about CSC, firmware version, carrier version etc.
Click to expand...
Click to collapse
Your phone, F936U, is carrier locked to the U.S. network, AT&T, and if genuine, can only receive updates when connected on their network as unlike other models, AT&T issue their own firmware updates.
This model also has a locked bootloader which prevents the flashing of alternative stock firmware.
Also, it seems strange that a phone that was only launched in August 2022 would have a, "May", update. Install DevCheck, free from the Play Store and check if you have a clone phone.

Emmanuel Spadafora said:
Hii have a zfold f936b bought from eBay.
It says IMEI is 00000000 and when I insert sim nothing happens.
Any idea what are my options ?
Click to expand...
Click to collapse
The phones efs/file is corrupt. See...
What is EFS folder ?
Hi All, I came to know the EFS folder is very important in Samsung phones. I didn't cared about it and flashed a different region ROM (XEU->OZS). Each thing is working fine. I can remember that there used to be some files inside the EFS folder...
forum.xda-developers.com
I have never been able to repair an efs/file but here is a link to someone who claims to have done so...
[GUIDE] how to fix EFS Damaged on samsung devices [EASY!]
Edited in 2022 to make it look a bit better! *WARNING* *TAKE A NANDROID BACKUP OF EFS AND BASEBAND BEFORE STARTING* Hello people, first I want to say that this is my first guide so it doesn't really look professional but I am doing my best to...
forum.xda-developers.com

[email protected] said:
Your phone, F936U, is carrier locked to the U.S. network, AT&T, and if genuine, can only receive updates when connected on their network as unlike other models, AT&T issue their own firmware updates.
This model also has a locked bootloader which prevents the flashing of alternative stock firmware.
Also, it seems strange that a phone that was only launched in August 2022 would have a, "May", update. Install DevCheck, free from the Play Store and check if you have a clone phone.
Click to expand...
Click to collapse
I got it carrier unlocked. Everything works fine in India with major carriers, even getting 5G to work here. Attaching screenshots of DevCheck
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

Adv.Chirag said:
I got it carrier unlocked. Everything works fine in India with major carriers, even getting 5G to work here. Attaching screenshots of DevCheck
View attachment 5789875View attachment 5789881
Click to expand...
Click to collapse
Seems genuine. Your mention of a May update threw me.
It is running the F936USQU1AVGA firmware which it was launched with and therefore, has never received an update.
However, it is still a bootloader locked model, even though you have it carrier unlocked. The only way to update it is to insert an AT&T SIM card and connect to their network in the US. Other than that, you will need to do a search to see if there are any custom ROM's that utilises the locked AT&T bootloader. Alternatively, just carry on using it as it is

[email protected] said:
Seems genuine. Your mention of a May update threw me.
It is running the F936USQU1AVGA firmware which it was launched with and therefore, has never received an update.
However, it is still a bootloader locked model, even though you have it carrier unlocked. The only way to update it is to insert an AT&T SIM card and connect to their network in the US. Other than that, you will need to do a search to see if there are any custom ROM's that utilises the locked AT&T bootloader. Alternatively, just carry on using it as it is
Click to expand...
Click to collapse
Thanks for clearing these things for me. I appreciate it.

No experience with AT&T but if they release their firmware online then you should be able to download & flash latest using ODIN.
Good Luck....

ultramag69 said:
No experience with AT&T but if they release their firmware online then you should be able to download & flash latest using ODIN.
Good Luck....
Click to expand...
Click to collapse
Thanks

i dont think its possible, India phone comes with 2 physical sim slots or an esim option for the second sim where as the AT&T which you and I have, comes only with single physical sim.

Adv.Chirag said:
So I am using AT&T version Zfold 4 model SM-F936U/DS in India and my software version is as follows:
Build number
SP2A.220305.013.F936USQU1AVGA
Service provider software version
SAOMC_SM-F936U_OYN_GCF_12_0003
GCF/GCF.GCF/XAA
Its stuck on android 12 May update.
I want to flash Indian firmware to make it Indian version of Z fold 4 for faster updates and enabling the call recorder.
What do I need to do? Any help will be appreciated. If this is answered anywhere please provide links to that thread and I will delete this one.
I am totally confused about CSC, firmware version, carrier version etc.
Click to expand...
Click to collapse
Hi Chirag,
were you able to update your phone? I have the same model(SM-F936U/DS) and stuck with an old update and no new updates show up even though Andriod 13 has been rolled out for the Indian variants.
if there is no possibility of updating the phone then I might consider selling it! any help woud be appreciated.

chakraa2 said:
Hi Chirag,
were you able to update your phone? I have the same model(SM-F936U/DS) and stuck with an old update and no new updates show up even though Andriod 13 has been rolled out for the Indian variants.
if there is no possibility of updating the phone then I might consider selling it! any help woud be appreciated.
Click to expand...
Click to collapse
There is no way I could find online to get the updates. Nothing works. The only way is to have US sim and be connected to AT&T network in US to get the update which is impossible. So I guess we are stuck with the old os version.

Adv.Chirag said:
There is no way I could find online to get the updates. Nothing works. The only way is to have US sim and be connected to AT&T network in US to get the update which is impossible. So I guess we are stuck with the old os version.
Click to expand...
Click to collapse
Hi Chirag,
Thanks for the revert. Thats a bummer that we can't do anything with the update. I can still make my peace with the slow updates but having no updates especially the security updates is very concerning.
I will keep you posted in case I happen to come across any solution to this.
Regards,
Amit.

Adv.Chirag said:
I got it carrier unlocked. Everything works fine in India with major carriers, even getting 5G to work here. Attaching screenshots of DevCheck
View attachment 5789875View attachment 5789881
Click to expand...
Click to collapse
may I ask how you able to unlock it? Who did you go to?

I would say just start going through the different csc that's how I got mine to show the new up date then I just went back to gfc
Adv.Chirag said:
There is no way I could find online to get the updates. Nothing works. The only way is to have US sim and be connected to AT&T network in US to get the update which is impossible. So I guess we are stuck with the old os version.
Click to expand...
Click to collapse
I would say just start changing csc until it comes up that's how I got mine to show then January update and then I went back to GFC

shorty9210 said:
I would say just start going through the different csc that's how I got mine to show the new up date then I just went back to gfc
I would say just start changing csc until it comes up that's how I got mine to show then January update and then I went back to GFC
Click to expand...
Click to collapse
Hi, Do you mind listing out the csc version that you used? Also any tips on how to flash it would be appreciated . The lack of software update is really driving me nuts man.

Adv.Chirag said:
There is no way I could find online to get the updates. Nothing works. The only way is to have US sim and be connected to AT&T network in US to get the update which is impossible. So I guess we are stuck with the old os version.
Click to expand...
Click to collapse
Hi Chirag,
I can confirm the method mentioned shorty9210 indeed works! I just changed the CSC to T-Mob and the updates have started flowing. Just use the samFw.com tool to change the CSC, you will get T-MOB logo once you have changed the CSC but the updates will come by. It didnt delete the data too. Couldnt be any happier!
Give it a shot!
Cheers,
Amit.

shorty9210 said:
I would say just start going through the different csc that's how I got mine to show the new up date then I just went back to gfc
I would say just start changing csc until it comes up that's how I got mine to show then January update and then I went back to GFC
Click to expand...
Click to collapse
you are a life saver sir! Thanks so much! I changed the csc to T-Mob and the updates are flowing! A quick question though do we need to change back and forth to GFC everytime theres an update? For now mine is at T-MOB.