[REF][A 2017] MODEMS and BOOTLOADERS collection [09.07.2018] - Samsung Galaxy A3, A5, A7 (2017) Guides, News, & D

All the files are extracted from stock official Samsung firmware releases.
Take the file that suits you best, only for your device variant.
Read carefully the instructions. I am not responsable for anything you do with your device.
Prerequisites:
download Odin v3.13.1
download and install Samsung Drivers (if you have them installed you can skip this step)
download BL (bootloader) and CP (modem) for your device variant.
Instructions:
Switch off the phone
Use Home+Volume Down+Power to enter Download Mode and connect the device to usb
Open Odin and untick autoreboot in "options" tab. Also make sure that your device is detected
Put BL_*.tar.md5 file into BL tab
Put CP_*.tar.md5 file into CP tab
Click Start
Wait 1 min and manually reboot your phone into Download mode using Home+Volume Down+Power buttons, but when the warning appears, hit volume down (Cancel-restart the device)
Use Phone INFO app to check if update was succesful.
If it didn`t worked, redo the steps from #1 more careful this time.
Downloads:
MEGA
Latest Oreo releases:
*based on build date/changelist
A320F - BL_A320FXXU3CRD4 and CP_A320FXXU3CRD3
A320FL - BL_A320FLXXU2CRE1 and CP_A320FLXXU2CRD3
A520F - BL_A520FXXU4CRF1 and CP_A520FXXU4CREH
A520K - BL_A520KKKU2CRD8 and CP_A520KKKU2CRD6
A520L - BL_A520LKLU2CRD7 and CP_A520LKLU2CRD6
A520S - BL_A520SKSU2CRD7 and CP_A520SKSU2CRD6
A520W - BL_A520WVLU2CRF2 and CP_A520WVLU2CRF2
A720F - BL_A720FXXU3CRF3 and CP_A720FXXU3CRE2
A720S - BL_A720SKSU2BRE1 and CP_A720NKOU2BRE1
For some of the devices you can find Nougat bootloader and modem as well, will try to add for all of them depending on the time i have.
If i forgot a device/firmware version, tell me and i will try to add it.
Feel free to donate to me if you want to support my work

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Questions and answers:
Q: Should i install latest bootloader/modem? Why?
A: Yes, bootloader and modem usually can contain security patches, hotfixes, modem improvements and even more, so it should bring general improvement
Q: What to do if odin refuses to flash the files?
A: Check if you downloaded proper package for your phone variant, check if downloaded files have tar.md5 extension, check if the phone is detected by Odin, check if you have the specific Odin package from the Mega folder, it has support for new lz4 format included by Samsung.
Q: New bootloader and modem caused me x issue(s), how can i fix it?
A: You can always flash older/newer bootloader and modem and see if the issue is fixed.
Q: My phone doesn't recognise the sim inserted, i have no baseband in settings and no imei, what to do?
A: Make sure the bootloader/modem installed is the proper one according to android version of firmware installed on the phone. (Nougat bl and cp for nougat roms / Oreo bl and cp for Oreo roms)
Q: Loading
A: Loading

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Reserved

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Very nice. Keep up the great work

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corsicanu said:
EOL TWRP flashable zips
EOL - A520F TWRP Modem and bootloader flasher - MEGA
* Contains both OREO (A520FXXU4CRD5) and NOUGAT (A520FXXU4BRC4), for easy switch
EOL - A720F TWRP Modem and bootloader flasher - MEGA
* Contains both OREO (A720FXXU3CRD3) and NOUGAT (A720FXXU3BRC2), for easy switch
Click to expand...
Click to collapse
Excellent work-thanks for your efforts but I'm on the rom hades do I have to say install this and help me?
تم الإرسال من SM-A720F باستخدام Tapatalk

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al.iraq said:
Excellent work-thanks for your efforts but I'm on the rom hades do I have to say install this and help me?
تم الإرسال من SM-A720F باستخدام Tapatalk
Click to expand...
Click to collapse
As i said in Q/A, you should update them, this can only bring general improvement, usually they contain hotfixes, security patches, nothing that can harm your device.
Regards
Sent from my SM-A720F not using Tapatalk

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corsicanu said:
As i said in Q/A, you should update them, this can only bring general improvement, usually they contain hotfixes, security patches, nothing that can harm your device.
Regards
Sent from my SM-A720F not using Tapatalk
Click to expand...
Click to collapse
Thank you so much again you are the best[emoji257]
تم الإرسال من SM-A720F باستخدام Tapatalk

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A520W Nougat files ? or what do I need to do to install Hades Rom ? I have a "custom" stock rom on Nougat... and REALLY REALLY REALLY want your rom...

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ACKING_QC said:
A520W Nougat files ? or what do I need to do to install Hades Rom ? I have a "custom" stock rom on Nougat... and REALLY REALLY REALLY want your rom...
Click to expand...
Click to collapse
You need oreo files and sadly, samsung didn't released yet that for Canada users. I will try today some things, maybe i can make the rom work with nougat files. Regards
Sent from my SM-A720F not using Tapatalk

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Can you make files with Android 6.0.1 bootloaders and modems for A520F for TWRP to be able to return from OREO 8.0 to Marshmallow 6.0.1. if it possible?

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Added new/updated bootloaders and modems:
A520F - BL_A520FXXU4CREF - this can be flashed with any oreo modem, latest release is CP_A520FXXU4CRE6
A720S - BL_A720SKSU2BRE1 and CP_A720NKOU2BRE1
Downloads:
MEGA

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corsicanu said:
Added new/updated bootloaders and modems:
A520F - BL_A520FXXU4CREF - this can be flashed with any oreo modem, latest release is CP_A520FXXU4CRE6
A720S - BL_A720SKSU2BRE1 and CP_A720NKOU2BRE1
Downloads:
MEGA
Click to expand...
Click to collapse
Thank you for update

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corsicanu said:
Added new/updated bootloaders and modems:
A520F - BL_A520FXXU4CREF - this can be flashed with any oreo modem, latest release is CP_A520FXXU4CRE6
A720S - BL_A720SKSU2BRE1 and CP_A720NKOU2BRE1
Downloads:
MEGA
Click to expand...
Click to collapse
The effort is so great, you can make this update entail by recovery because I don't have a computer[emoji120]
Please
A520F

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Thank u but i have one Q
I have a720f on stock nougat so do i have to install stock oreo to be able to flash oreo bootloader or i can do it while im on nougat ?

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medohatem said:
Thank u but i have one Q
I have a720f on stock nougat so do i have to install stock oreo to be able to flash oreo bootloader or i can do it while im on nougat ?
Click to expand...
Click to collapse
You can't use oreo modem and bootloader on nougat. Flash them only if you'll update to any oreo rom.
Sent from my SM-A520F using Tapatalk

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corsicanu said:
You can't use oreo modem and bootloader on nougat. Flash them only if you'll update to any oreo rom.
Sent from my SM-A520F using Tapatalk
Click to expand...
Click to collapse
firstly i have to say nice job and many thanks:good:
i have a question too.
i am in Oreo and i have a major battery drain from cell stand by.
so i m thinking to downgrade modem and use Nougat one(and stay in Oreo).
do you think is possible?
do i have to flash both bootloader and modem or just modem or it s impossible?

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broky said:
firstly i have to say nice job and many thanks:good:
i have a question too.
i am in Oreo and i have a major battery drain from cell stand by.
so i m thinking to downgrade modem and use Nougat one(and stay in Oreo).
do you think is possible?
do i have to flash both bootloader and modem or just modem or it s impossible?
Click to expand...
Click to collapse
You won't have imei/baseband/cell connection in oreo with nougat bootloader/modem.
Cell standby drain is there in more devices, just search on google "oreo cell standby drain" and you'll see that even op has that. It's not related to modem/bootloader as i ported oreo to J5 2017 which still has nougat modem and bootloader, cell standby drain is there too. So it must be build related, reports are all over, people wrote to samsung, hopefully they'll patch that in the future, for us only left to test every oreo fw release to see if that fixes.
Personal advice, use more wifi, data will disconnect and won't drain while on wifi.
Regards
Sent from my SM-A520F using Tapatalk

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@corsicanu bro, maybe I didn't flash this before that's why I'm having some problems in my cellular data. Need to test this first. I forgot to check my previous bootloader and modem before. But it came from the stock rom of oreo (Samsung A720F) I'll give you updates. Asap.

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Jubremelle said:
@corsicanu bro, maybe I didn't flash this before that's why I'm having some problems in my cellular data. Need to test this first. I forgot to check my previous bootloader and modem before. But it came from the stock rom of oreo (Samsung A720F) I'll give you updates. Asap.
Click to expand...
Click to collapse
Still the same as stock BL & CP. Cellular data suddenly turns off. Any way to fix this? BTW, flashed this via TWRP. The flashable zip.

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Jubremelle said:
Still the same as stock BL & CP. Cellular data suddenly turns off. Any way to fix this? BTW, flashed this via TWRP. The flashable zip.
Click to expand...
Click to collapse
Download latest bl/modem and flash them with odin.
Sent from my SM-A520F using Tapatalk