[GUIDE] How to Recover from a bad NON-HLOS.bin flash -no sound/phone app unresponsive

Device: i9505 / Qualcomm Snapdragon, locked to T-Mobile UK, went striaght from Samsung Stock ROM to CM11 on purchase in 2013.

Computing Platform: Macbook Pro - OSX Yosemite

Flash tool of choice: Heimdall 1.4.0 - cmd line !!! :)



Context:

• I updated from CM11 to CM12 - no issues. I decided to update to the Radio/Modem to the latest for Lollipop.


• Went to the relevant thread, downloaded 'I9505XXUHOB8_MODEM_and_I9505_XXUHOB8_WiFi_FIX' which included the modem.bin and the non-hlos.bin files.


• Flashed via Heimdall on the cmd line, all went ok.


• Booted the phone, wifi ok, cell data transfer ok, BUT no sound (touch sounds ok, no ring tone, or ringer adjustment tones), phone app unresponsive - very laggy, forced reboot, no sound on calls :(


• Tried other touted solution of mixing and matching various versions of modem and non-hlos - no luck.

Aim: Fix issue without having to ReFlash stock ROM - after all its only two files that caused an issue, just needed to know why?



After a lot of googling and searching xda, I got nowhere, only option seemed to be flash stock FW.



Started reading a lot around the modem.bin and non-hlos.bin - seemed not much info about at high level for the non-hlos.bin; began reading in depth about flashing and boot-loaders.



Solution: the modem.bin and non-hlos-bin that are flashed need an associated (or close) version of the bootloader of the same!



I downloaded the BL_I9505XXUHOB8_user_low_ship_MULTI_CERT (also tested with BL_I9505XXUHOB7_user_low_ship_MULTI_CERT which worked fine with the above XXUHOB8 modem and non-hlos!)



Untarred all into a single folder/directory ie XXUHOB8 :



-rwx------@ 1 myusername staff 12147712 26 Feb 09:23 NON-HLOS.bin ----> XXUHOB8 MODEM binary

-rwx------@ 1 myusername staff 52304896 26 Feb 09:23 modem.bin ----> XXUHOB8 NON-HLOS binary



-rwx------@ 1 myusername staff 1313312 25 Feb 16:45 aboot.mbn ----> XXUHOB8 Bootloader Files

-rwx------@ 1 myusername staff 153696 25 Feb 16:45 rpm.mbn ----> XXUHOB8 Bootloader Files

-rwx------@ 1 myusername staff 94772 25 Feb 16:44 sbl1.mbn ----> XXUHOB8 Bootloader Files

-rwx------@ 1 myusername staff 152168 25 Feb 16:44 sbl2.mbn ----> XXUHOB8 Bootloader Files

-rwx------@ 1 myusername staff 270664 25 Feb 16:45 sbl3.mbn ----> XXUHOB8 Bootloader Files

-rwx------@ 1 myusername staff 217068 25 Feb 16:45 tz.mbn ----> XXUHOB8 Bootloader Files

• I inspected the .PIT file, determined the order (may not be necessary, but I was unclear, so...),


• put phone into download mode (from complete power off, Volume Up & Home & Power button, then release power button and press Volume Up to proceed)


• and then ran the following:

Code:

---

heimdall flash --APNHLOS NON-HLOS.bin --MDM modem.bin --SBL1 sbl1.mbn --SBL2 sbl2.mbn --SBL3 sbl3.mbn --ABOOT aboot.mbn --RPM rpm.mbn --TZ tz.mbn --verbose --no-reboot

---

• Turned the phone off by holding the power button.


• Then back into download mode

• Next I reflashed CF-Auto-Root using heimdall - again untarred to a folder:

-rw-r--r--@ 1 myusername staff 9199616 7 Aug 2014 recovery.img ----> CF-Auto-Root Recovery Image

-rw-r--r--@ 1 myusername staff 17330396 7 Aug 2014 cache.img.ext4 ----> CF-Auto-Root Cache File

• then flashed using the following:

Code:

---

heimdall flash --RECOVERY recovery.img --CACHE cache.img.ext4 --verbose --no-reboot

---

• turned phone off, holding power button.


• Then booted into Recovery (Volume Up & Power)


• CF-Auto-Root took over and did its thing.

At this stage I had lost custom recovery to Samsung Stock Recovery, so to get it back, again using Heimdall...

• unaterred CWM Touch into a folder:

-rwxr-xr-x@ 1 myusername staff 8878080 29 Feb 2008 recovery.img ----> CWM Image file

• Powered off completely.


• Back into Download mode


• then flashed as per:

Code:

---

heimdall flash --RECOVERY recovery.img --verbose --no-reboot

---

• Turned off completely using power button.


• Then booted into recovery to check that CWM was back, and it was.


• Whilst in CWM, wiped the cache and Dalvik, refalshed my CM12 nightly, and rebooted.

ALL FIXED! and all without having to reflash stock!



HTH



Peace to all.

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