Property:APPSBL

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Linux-Partition

Partition:	APPSBL   -   type Part	Wiki	Freetz	IPPF	whmf	AVM	Web
Location:	System >> Linux-Partitions   -   Origin: AVM
Device:	mmcblk0p13, mmcblk0p14, mmcblk0p18
Properties:	Firmware: 7.27 - 7.81
Function:	SBL: Application Secondary Bootloader - EVA #0 (Hawkeye).

Goto:   Hawkeye  -  Miami  -  Dakota  -  Dependencies   -   Model-Matrix   -   Missing Supportdata   -   SMW-Browser

Details

APPSBL is the Application Secondary Bootloader partition. It contains the first instance of the EVA bootloader.
The label of this partition is originally named 0:APPSBL, which is an invalid article name in Mediawiki.

APPSBL is stored in 2 instances and is loaded by the SBL and executed in the normal world.
The size and location differ each platform, see below.

The APPSBL partitions are updated by urladerupdate, but not the entire partitions, just the leading static part of EVA.
Normally EVA contains an embedded config section which varies across unique devices. This would break the signature.
That's why EVA has a signed static part on APPSBL partitions excluding the unique config at the end of each partition.

Multi-EVA boot on Qualcomm-ARM:

• SoCs: Hawkeye, Alder, Miami, Dakota, Maple
• Lexicon: PBL, SBL, TrustZone, EVA
• Procfs: sbl_version, sbl_reboot, struct_version
• Procfs: sbl_fault_register, sbl_reset_debug, sbl_wdog_status, sbl_wonce
• Procfs: tz0_verified, tz0_version, tz1_verified, tz1_version
• Procfs: tz_boot_ack, tz_boot_index, tz_version
• Procfs: eva0_verified, eva0_version, eva1_verified, eva1_version
• Procfs: eva_boot_ack, eva_boot_index
• Firmware: sblupdate, tzupdate, urladerupdate
• Commands: tz_update
• Startup: E02-tz_update, cortexa9, cortexa9.service
• Partitions: GPT, alignto512, align_config_to_4mb, SBL1, SBL1_1, MIBIB
• Partitions: BOOTCONFIG, BOOTCONFIG1, QSEE, QSEE_1, DEVCFG, DEVCFG_1, RPM, RPM_1
• Partitions: CDT, CDT_1, APPSBL, APPSBL_1, CONFIG, CONFIG_1, TME, TME_1
• Kconfig: CONFIG_AVM_FASTIRQ, CONFIG_AVM_TZ_EXTENSIONS, CONFIG_QSEECOM
• Kernel: avm_sbl.ko, avm_tz.ko, qseecom.ko, ipq40xx_qseecom.ko

Hawkeye

On Hawkeye both 512 KB sized APPSBL partitons are located on the eMMC, the second instance is named APPSBL_1.

See the SBL article for the partition table.

Miami

On Miami both 768 KB sized APPSBL partitons are located on the eMMC, the second instance is also named APPSBL_1.

See the SBL article for the partition table.

Dakota

On Dakota both *hidden* 256 KB sized APPSBL partitons are located in mtd2, the second instance is named APPSBL_B.

See the SBL article for the partition table.

me@home:~/bin$ binwalk 7520_eva1.bin

DECIMAL       HEXADECIMAL     DESCRIPTION

0             0x0             ELF, 32-bit LSB executable, ARM, version 1 (SYSV)
80312         0x139B8         device tree image (dtb)
105248        0x19B20         CRC32 polynomial table, little endian
110610        0x1B012         PARity archive data - file number 25938
117561        0x1CB39         Copyright string: "Copyright 2018 AVM Date: %s Time: %s "
126740        0x1EF14         JFFS2 filesystem, little endian
245764        0x3C004         Zlib compressed data, default compression
247812        0x3C804         Zlib compressed data, default compression
251908        0x3D804         gzip compressed data, maximum compression, has original file name: "cert.tar", from FAT filesystem (MS-DOS, OS/2, NT), last modified: 2019-07-24 22:21:03

Dependencies

Daily updated index of all dependencies of this partition. Last update: GMT.
A * in the Mod column marks info from Supportdata-Probes, which will always stay incomplete.
A ** in the Mod column marks info from Supportdata2 probes, which by their nature will stay way more incomplete.
A - in the Mod column marks manual research, the Firmware then shows where the item occurs, not the Relation.

Relation	Typ	Object	Mod	Firmware	Info	Origin
0 dependencies for this partition

Model-Matrix

Daily updated index of the presence, path and size of this partition for each model. Last update: 2024-12-21 07:02 GMT.
Showing all models using this partition. Click any column header (click-wait-click) to sort the list by the respective data.
The (main/scrpn/boot/arm/prx/atom/rtl) label in the Model column shows which CPU is meant for Multi-Linux models.
Note that this list comes from Supportdata-Probes, which can have arbitrary settings and come from different firmware versions.
It doesn't say much if a model is not listed here. It may be a missing supportdata file or just a disabled feature.

Model	Firmware	Device	Size
FRITZ!Box 4060	7.28 - 7.29	mmcblk0p13	512k
FRITZ!Box 5590 Fiber (main)	7.27 - 7.81	mmcblk0p13	512k
FRITZ!Box 5690 Pro (main)	7.61	mmcblk0p18	768k
FRITZ!Box 7682	7.60	mmcblk0p18	768k
FRITZ!Box 7690	7.60 - 7.61	mmcblk0p14	768k
5 models use this partition

Missing Supportdata

The data in this article is incomplete due to missing Supportdata-Probes for the models listed below.
If you own any of these models and would like to help then please get in touch.

Model	Method	Info
FRITZ!Box WLAN 3270 IT	lua	http://fritz.box/support.lua
FRITZ!Box Fon ata	html	http://fritz.box/html/support.html
FRITZ!Box Fon ata 1020	html	http://fritz.box/html/support.html
FRITZ!Box Fon 5010	html	http://fritz.box/html/support.html
FRITZ!Box Fon 5012	html	http://fritz.box/html/support.html
FRITZ!Box Fon WLAN 7113 INT	html	http://fritz.box/html/support.html
Speedport W 501V	telnet
Speedport W 722V	console
Eumex 300 IP	telnet
9 models without supportdata probes

SMW-Browser

Property:APPSBL

Information is currently being retrieved from the backend.