Samsung s5 sm-g900i modem upgrade? - Galaxy S 5 Q&A, Help & Troubleshooting

Hi all,
I'm wanting to upgrade my modem, though need some assistance.
I'm on an Australian purchased Samsung Galaxy S5 - modem sm-g900i.
My current baseband/modem is G900IDVU1CPL1.
My understanding is that there are 2 ways to upgrade a modem
1 by flashing an entire firmware - so as my phone is unbranded, I'd have to do something like factory wipe
and flash the latest samsung firmware at
https://www.sammobile.com/firmwares/galaxy-s5/SM-G900I/XSA/ then re-factory wipe and install my lineageos.
Or
2 by obtaining the actual modem files and flashing them manually.
- If I was able to obtain these modem files - would I be able to flash them manually within my TWRP bootloader?
- If I am able to flash the modem from TWRP can I back my existing one first and restore it quite easily if this fails?
The reason for wanting to flash my modem is to see whether it makes an impact on battery and performance.
As I'm currently using Lineage OS I'd prefer to use option 2 if this is possible.
I also don't have a PC at home with ODIN (as I have a mac here) therefore I'm hoping to avoid an answer that refers me to Odin (though can get my hand on one if necessary).
Any help would be greatly appreciated.
Thank you.

Just hoping to bump this one. I'm hoping I've typed it in the correct forum.
Just want to know whether and how I can update my modem on my Samsung S5 within twrp.
Thanks.
Sent from my SM-G900I using Tapatalk

get anywhere with this ?

Related

[Q] T-Moible Galaxy Tab flashing

Hi
Ive recently been gifted a T-mob samsung galaxy tab. I had a few questions about the same, would be very glad if someone could answer them for me
1) Is it possible to flash it with Indian/Asian firmware? I did some reading aand found out that flashing with euro firmware is possible, so this sould also be possible? If so, can someone point me as to where i might get more info on this?
2) Once flashed, and connected via Kies, if a new firmware of that region is released, would it automatically update to the new version or it will have to be done manually again?
3) Is it possible to flash back to original t-mob firmware should i need to avail warranty in the future?
you help is appreciated.
1) Is it possible to flash it with Indian/Asian firmware? I did some reading aand found out that flashing with euro firmware is possible, so this sould also be possible? If so, can someone point me as to where i might get more info on this?
Flashing to Asian firmware is possible. I did it with Korean Firmware. However, it is useless in U.S. Market. If you are trying to flash it due to language, I would look for other solution rather than changing the whole rom.
2) Once flashed, and connected via Kies, if a new firmware of that region is released, would it automatically update to the new version or it will have to be done manually again?
Most likely it will need to be done manually.
3) Is it possible to flash back to original t-mob firmware should i need to avail warranty in the future?
Yes it is possible to flash back to T-mob firmware. Check Rotohammer's Roto backup process.

Odin3.10 failing to flash BL and Modems

Hello. I am attempting to flash new BL and Modems using Odin 3.10.6 on a Windows 7 partition on a Macbook Pro mid-2012 OS 10.10. My phone is a T-Mobile Samsung Galaxy S4, Baseband number M919UVUAMDL. My current build number on my phone is Omega v7.0 - XXUBMF8. I'm trying to upgrade to Omega v42 - XXUHOF2.
My problem:
Odin recognizes my phone fine but fails the flash very quickly. The fail message Odin gives is "FAIL! (auth)" right after "NAND Write Start!!" and my phone displays the message "Secure Check Fail: aboot". This happens no matter what USB cable I use.
The files I'm trying to flash are:
BL_I9505XXUHOF2_user_low_ship_MULTI_CERT.tar
GSM_Modem_I9505XXUHOF2_and_LTE_Modem_I9505XXUHOF2.tar
Any help?
You can't flash an I9505 bootloader or modem on a T-Mobile S4. You can only use a T-Mobile bootloader and modem. So search the T-Mobile S4 forums for the most current bootloader and modem, and flash them through Odin.
Thank you for the help. I am now quite confused and need more help, if it can be spared.
I understand now that I can only use SGH-M919 bootloaders and modems but I can use Omega ROMs, too. I tried my best to find current, and any, bootloaders and modems on the SGH-M919 forum without success. I'm not an idiot but I'm also not experienced with navigating this forum. Can anyone offer more specific direction to SGH-M919 bootloaders and modems?
Some other questions I now have:
- Do I need Lollipop BL/modem in order to flash a Lollipop-based custom ROM or can I use any generation BL/modem?
- Will all Lollipop-based custom ROMs require me to flash new BL/modems? Can I just find a ROM that doesn't require new ones?
If it seems like I'm confused or ignorant of more issues than I've addressed, it probably because I am. Any and all help and education is greatly appreciated. Thanks.
There is a link to the T-Mobile S4 forums in my previous post. Make a thread in their Q&A section and ask where the bootloaders and modems are. If I recall however, the T-Mobile S4 never went past 4.4.4, though I hope I'm wrong. Regardless, while these ROMs all recommend the latest Android 5.x bootloaders and modems, they should still work with whatever you do have available. Performance may however be affected.

Samsung Galaxy S4 LTE Modem Baseband flash with Odin

Hello guys,
I am verry sorry to bother you with this, but I am just to dumb for this part.
I am quite familiar with the whole custom rom business but I try to fix my mothers phone where I installed a Cyanogenmod custom rom (12.1) some time ago.
She experiences some mobile network issues which, I guess, are related to a old baseband / modem version causing troubles.
Can you tell me which version is the right one to flash via Odin or preferably via twrp?
I plan on updating it before installing the lastest 12.1 CM snapshot.
I believe she has the Samsung Galaxy S4 I9505 International with LTE and Snapdragon processor.
Under baseband version ("About the phone") it says I9505XXUEML6.
(I dont know if this is correct I can remember that I once installed a Google Play Edition Rom to get rid of the bloatware).
The phone was bought in Germany.
I know that you guys are probably busy with more important stuff but I'd really appreciate it if you could quickly help me with that.
Have a great day.
Thank you in advance.
Update: I got the files, changed the cable Odin passed but no version change!
Update 2:
Manually going into fastboot instead of using the reboot menu did it! Thank you so much. (Maybe add that info to the guide to avoid similar problems with othe people)
Thumbs up & good night!

Not able to change baseband for SHV E330L

Hi All,
I have a newly refurbished Korean samsung galaxy s4 LTE active (LGU) SHV-E330L with baseband E330LKLUDPH1. It heats up heavily and have battery draining issue due to wifi reconnection and mobile signal searching in countries like India, pakistan and Bangladesh. Also, it does not have LTE band 3 support which is usually available in the international version i9505 or i9506 of the same device and is also supported by the chipset.
I updated the device with custom ROMs but it could not change the baseband, if I try official firmware, I get fail : auth error in odin along with secure check fail for: aboot.
I also tried flashing bootloader and modem from i9505 and i9506 only but could not change the baseband and get the same auth error.
I also tried NV writing to NV item 6828 but it gave success message only but did not update the values, as I checked by backing up again.
Currently I have twrp recovery installed along with 6.0.1 marshmallow and it shows model SM-G900M galaxy s5 but still all those problem exist.
My questions are :
1. Is it possible to change baseband? How ?
2. Is there any stable baseband for galaxy s4 without any issues?
3. Will it softbrick the device if I update the bootloader and modem now?
4. How do I backup/restore/flash modem or bootloader using TWRP ?
You cannot cross-flash the bootloader from another s4 to this phone using Odin. Also, cross-flashing the bootloader could hard-brick the phone.
audit13 said:
You cannot cross-flash the bootloader from another s4 to this phone using Odin. Also, cross-flashing the bootloader could hard-brick the phone.
Click to expand...
Click to collapse
Thanks for replying .
with Heimdall , is it possible ?
I can leave alone the boot loader , I only want to flash compatible modem.bin and non HLOS bin .
Do you know a way to fix this ?
I have tried many custom roms but none seem to help about network .
samfirmwar said:
with Heimdall , is it possible ?
Click to expand...
Click to collapse
Really?
You can only flash firmware from the same model as your device.
Sent from my Redmi 3 using XDA Labs
I don't recommend cross-flashing modems either and an incompatible bootloader/modem could hard brick the phone.
audit13 said:
I don't recommend cross-flashing modems either and an incompatible bootloader/modem could hard brick the phone.
Click to expand...
Click to collapse
Thanks for your reply .
Hi , I understand , it can brick the phone but how do I resolve the problem ? if not the boot loader but a compatible modem firmware such as international version of GT-i9506 could help ? Is there a compatible modem software other than the original firmware ?
As I stated my problems clearly in the original post, I have several problems with device software as i think they are software problems.
Is there any fix or solution for that other than what I tried ?
krasCGQ said:
Really?
You can only flash firmware from the same model as your device.
Sent from my Redmi 3 using XDA Labs
Click to expand...
Click to collapse
Hi
Is there any other solution other than what I tried as in the original post ?
Is there any other compatible modem binary other than shv model ?
krasCGQ said:
Really?
You can only flash firmware from the same model as your device.
Sent from my Redmi 3 using XDA Labs
Click to expand...
Click to collapse
IS there a solution other than what I tried ?
could this be antenna problem ? changing hardware will solve this ?
1. You can only flash a baseband that applies to your device. Attempting to flash other basebands will fail and could damage the device, as @audit13 mentioned. As @krasCGQ makes clear, using Heimdall instead of Odin won't change this fact.
2. There may be other basebands available for your device, but that requires downloading the ROMs from sammobile or samsung-updates and extracting modem.bin and NON-HLOS.bin from them.
3. Updating the bootloader and the modem won't brick the device, so long as they are for your device. For example, you can flash an I9505 modem and baseband on any I9505, but cannot flash the same baseband and modem on an I9500.
4. You don't. You need Wanam Partition Backup and Restore to back up the modem partition. Backup up the bootloader you can do as well, but there's no point to it.
You asked how to resolve the battery drain and your other issues. Start downloading older ROMs and trying to flash their basebands until you find one that works well for you. Since you cannot flash basebands from other devices onto yours this is the only viable software solution other than "sucking up and dealing" with it. To answer your most recent question, changing the motherboard could in fact solve the issue, but like the basebands, the hardware is specific from one model to another. For example, you cannot place an I9505 motherboard in an I9500 device. You would need to purchase a SHV-E330L motherboard.
Strephon Alkhalikoi said:
1. You can only flash a baseband that applies to your device. Attempting to flash other basebands will fail and could damage the device, as @audit13 mentioned. As @krasCGQ makes clear, using Heimdall instead of Odin won't change this fact.
2. There may be other basebands available for your device, but that requires downloading the ROMs from sammobile or samsung-updates and extracting modem.bin and NON-HLOS.bin from them.
3. Updating the bootloader and the modem won't brick the device, so long as they are for your device. For example, you can flash an I9505 modem and baseband on any I9505, but cannot flash the same baseband and modem on an I9500.
4. You don't. You need Wanam Partition Backup and Restore to back up the modem partition. Backup up the bootloader you can do as well, but there's no point to it.
You asked how to resolve the battery drain and your other issues. Start downloading older ROMs and trying to flash their basebands until you find one that works well for you. Since you cannot flash basebands from other devices onto yours this is the only viable software solution other than "sucking up and dealing" with it. To answer your most recent question, changing the motherboard could in fact solve the issue, but like the basebands, the hardware is specific from one model to another. For example, you cannot place an I9505 motherboard in an I9500 device. You would need to purchase a SHV-E330L motherboard.
Click to expand...
Click to collapse
Thanks for the reply.
1. I9500 has different Chipset but i9506 has same as SHV-e330L . I understand the risk. My question is are you aware of compatible basebands for shv e330l other than original ?
2. I backed up using twrp recovery including bootloader, modem and efs, is it sufficient or do I still need Wanam Partition Backup ?
I will try older basebands for the same too.
One thing strange, originally , NV 6828 bit for original device should have been 15 for 1+3+5 LTE but are (08 10 00 ) band 4 + 13 LTE .
1. Chipset is irrelevant. If the baseband isn't for your model of S4 you will not be able to install it.
2. TWRP doesn't back up modem partitions at all, because the partitions in question cannot be seen by TWRP. Wanam is required.
I never was able to add bands to my I9505 and nearly bricked the device in trying it. I would stop trying to add bands.

Samsung S8 firmware - Questions regarding flashing

Hey guys, I have a Samsung S8 which I was running LinageOS on but now was to revert back to the stock android ROM.
The issue I have is it appears to be a South Koera (KTC) phone, but it always has this KTMobile crap on it when I flash it. So my question is can I flash another firmware?
I need some help understanding the different components made up in the firmware and what I can and cannot deviate from (to avoid bricking).
AP
CSC
BL
CP
Which of these HAVE to be the same? Im guessing bootloader (BL) must match otherwise I will brick it.
There is also a little confusion over weather it is a SM-G950F or a SM-G950N. I have seen the phone report both.
Is there a way or a firmware I can flash without all the KTMobile crap on it, or could I just flash a New Zealand firmware as I am based in New Zealand.
The firmware I installed currently is G950NKSU5DUA2, but it is buggy and is causing crashes. Can I deviate from this G950NKSU5DUA2 and chose a different firmware?
Thanks in advance.

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