Regarding the KNOX on S4 ... Hi , all. There are to much noice regarding KNOX warranty bit. On S4 Devices Lets describe some theory. And facts. Threr are 2 types of devices exist. 1. EXYNOS Devices with JTAG Disabled ( GT-I9300,GT-I9500,GT-N7100 etc.)
Shost list of affected devices ( according PDADB.net ) Code: 1.Samsung Exynos 5 Octa 5420
Devices with EFUSE KNOX ( Unable to remove KNOX ) Code: Samsung SGH-M919 Galaxy S4 (Samsung Altius) What this mean ? After replacing or WIPING eMMC and burning old bootloader on device with (KNOX Warranty: 0x01 ) you may downrgade device but KNOX Warranty bit will stay 0x01 for EVER. |
HI, Some Phone like I9500/I9300/N7100 For Downgrade Without connect via Direct eMMC, I9300 4.3 Downgrade File -- GT-I9300XXEMG4_KOR_MULTI_FACTORY I9500 4.3 Downgrade File -- I9500XXUBMH1_I9500OJVBMH2_I9500XXUBMG9 BR, Dicle_Gsm |
Stupid question... "Live Demo Units" like I9300X are JTAG enabled? Or same restriction like on Retail I9300A etc... :confused: Also I9500 Live Demo Units floating around... PCB not fully... missing parts... GPS and Modem stuff missing... Thanx in advance. Best Regards |
Most of Exynos 4 Quad 4412 Units have DISABLED JTAG, except DEV boards on this cpu. Anyway you can burn image by eMMC tool and solder all missing parts and make board full functional ;-) |
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P.S. i'm in fighting to readout partitions from one well working SGS4 i9505 ( 4.2.2 ) but Z3x jTAG just doesn't like 0x3FFC00000 like end address to readout full dump from #0 partition and crash with error. Riff give me errors and cannot handle well 1,8 V to use it just to read <-> write APBOOT partition. I wish use it to try to recover another SGS4 damaged by Upgrade <-> downgrade process ( by the owner words, so - now APBOOT cannot be writen !!! on any official SW version - even and latest- mean in Protected memory downgrade trigger is activated) . Phone work with Custom 4.3 or Custom deKNOX-ed 4.2.2 + Google Play kernel, but is veeeeery slow on conversation ( and no sound ) ... mean in you initiate dialing, then will see call time after 15-16 sec. and counter will jump in 5-8 sec steps, if you try to close call - then end of call will be shown in next 15 - 20 sec ... but INSIDE PCB look like new! And just to browse in phone apps is fast itself. This push me to look over bad handle of radiopart ( mean APBOOT like SW ) ... So if someone have brilian ideas - let me know. |
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For repair dead I9505 Demo Unit or Slow Phone ,No Need Read Full Dump... But you need another alive phone So,Try This: 1-Root Alive phone and connect to pc and run CMD.exe 2-run this command: Quote:
4-Now,Connect Bricked phone to Box and Write 256mb readed by USB 5-Start DL-Mode for Alive Phone and Bricked Phone 6-Flash Latest "Philz Recovery" for both phone 7-Start Custom recovery in Alive phone 8-Goto Setting of "Backup" menu....unselect "MD5".....Select All Partition one by one for take backup.....Now Try Take backup in SDCARD 9-Put SDCARD in Bricked phone and try "Restore" 10-Enjoy |
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how to Downgrade cdma s3 r530u 4.3 to 4.1.2 |
Hello. I have a samsung galaxy tab s 8.4 wifi only tablet. It has the Exynos 5 Octa 5420 chipset. Anyway that the method described here for resetting the knox counter works on this device? Thx |
I want to replace I9505 mcu but don´t know where it is located or the partnumer like UME600 = emmc? Thanks Klaus |
MCU is UCP600 - 0902-002997 |
what about mine, i have i9295 knox is enable after update thru wifi. i cant flash to odin even other gadget always boot.fail is there any solution or tricks to bring back to othe old version? i mean flash? unit status is always odin mode cant flash |
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