[HTC DESIRE 820 single sim] Unable to update to Android 6 Marshmallow 3.17.401.3 - GSM-Forum

Serahfin · 03-17-2018, 22:44

Hello all,

first of all, thank you for welcoming me to you. I explain the reason for my coming. I have bought a htc desire 820. The device has only one SIM, and after downloading the second part of the software update
(Android 6 Marshmallow / 3.17.401.3 / 1.04Go part 2/2), after unzipping, the device reboot, begin to install it but after few minutes, it shows the red triangle (so the upgrade fails).

I have repeated this procedure so many times. I have also reset the device to factory settings, backing up what was possibile to backup, but also this procedure fails. I spent hours searching for a solution without being able to find and here I am among you. I suspect a damage in the recovery stock... the phone works but I stay blocked in Android 5.02. The device is not rooted and the bootloader is locked.

Please if anyone can help me or better, have a solution

(flash the recovery stock or install a new ROM stock but i haven't found any compatible files for my main version and CID).

Thanks by advance and excuse my level school english (i'm french).

Device informations :
version: 0.5
version bootloader: 3.19.0.0000
version Baseland: 01.01.010_U10305041_08.01.51015_F
version cpld :None
version micorp :None
version main: 2.11.401.6
version misc: PVT SHIP S-ON
serialno: HT55*********
imei: 35**********
imei2: Not support
meid: 00000000000000
product: a51_ul
platform: hTCBmsm8939
modelid: 0PFJ40000
cidnum: HTC__031
battery-status: good
battery-voltage: 0mV
partition-layout: Generic
security: on
build-mode: SHIP
boot-mode: FASTBOOT
commitno-bootloader: da038a09
hbootpreupdate: 11
gencheckpt: 0
nfg-name: 0001
all: Done !
finished. total time: 0.453s

**wgmmmx1** · 03-18-2018, 00:07

Hi try this tutorial should be ok for you. Problem will be solved if you follow all step.
HTC Desire 820 - Frequently Asked Questions about resetting your device - HardReset.info

Serahfin · 03-18-2018, 17:12

Hello
and thank you for taking your time to solve my problem. I looked carefully at the link you gave me but I can not find the firmware corresponding to my CID (HTC__031), it does not appear in the list.

could you tell me which firmware I have to download?
Thanks in advance.

Serahfin · 03-19-2018, 18:24

Hello !

Good news ! I follow your instructions and i've choosen and install this ROM to hard reset : 0PFJIMG_A51_UL_M60_DESIRE_SENSE70_MR_HTC_Europe_3. 17.401.3_Radio_01.01.010_U10305041_08.01.50512_rel ease_478318_combined_signed

The phone updates and at the end "image boot failed" but the device the phone still updated and works...

So thank you very much !!! (sorry for the double post but i can't edit the previous).

03-17-2018, 22:44	#1 (permalink)
Serahfin Junior Member Join Date: Mar 2018 Posts: 3 Member: 2822030 Status: Offline Thanks Meter: 0	[HTC DESIRE 820 single sim] Unable to update to Android 6 Marshmallow 3.17.401.3 Hello all, first of all, thank you for welcoming me to you. I explain the reason for my coming. I have bought a htc desire 820. The device has only one SIM, and after downloading the second part of the software update (Android 6 Marshmallow / 3.17.401.3 / 1.04Go part 2/2), after unzipping, the device reboot, begin to install it but after few minutes, it shows the red triangle (so the upgrade fails). I have repeated this procedure so many times. I have also reset the device to factory settings, backing up what was possibile to backup, but also this procedure fails. I spent hours searching for a solution without being able to find and here I am among you. I suspect a damage in the recovery stock... the phone works but I stay blocked in Android 5.02. The device is not rooted and the bootloader is locked. Please if anyone can help me or better, have a solution (flash the recovery stock or install a new ROM stock but i haven't found any compatible files for my main version and CID). Thanks by advance and excuse my level school english (i'm french). Device informations : version: 0.5 version bootloader: 3.19.0.0000 version Baseland: 01.01.010_U10305041_08.01.51015_F version cpld :None version micorp :None version main: 2.11.401.6 version misc: PVT SHIP S-ON serialno: HT55******* imei: 35******** imei2: Not support meid: 00000000000000 product: a51_ul platform: hTCBmsm8939 modelid: 0PFJ40000 cidnum: HTC__031 battery-status: good battery-voltage: 0mV partition-layout: Generic security: on build-mode: SHIP boot-mode: FASTBOOT commitno-bootloader: da038a09 hbootpreupdate: 11 gencheckpt: 0 nfg-name: 0001 all: Done ! finished. total time: 0.453s Last edited by Serahfin; 03-17-2018 at 22:50.

03-18-2018, 00:07	#2 (permalink)
wgmmmx1 Moderator Join Date: Oct 2009 Location: Poland Age: 42 Posts: 10,174 Member: 1139057 Status: Offline Sonork: 100.109924 Thanks Meter: 4,428	Hi try this tutorial should be ok for you. Problem will be solved if you follow all step. HTC Desire 820 - Frequently Asked Questions about resetting your device - HardReset.info __________________ Please do not Personal Message me for help or troubleshooting. They will be ignored. Use the forums! To get Instant help use "search" & follow "sticky thread"..!!! By respecting/following forum rules,You will be respected .!

03-18-2018, 17:12	#3 (permalink)
Serahfin Junior Member Join Date: Mar 2018 Posts: 3 Member: 2822030 Status: Offline Thanks Meter: 0	Hello and thank you for taking your time to solve my problem. I looked carefully at the link you gave me but I can not find the firmware corresponding to my CID (HTC__031), it does not appear in the list. could you tell me which firmware I have to download? Thanks in advance.

03-19-2018, 18:24	#4 (permalink)
Serahfin Junior Member Join Date: Mar 2018 Posts: 3 Member: 2822030 Status: Offline Thanks Meter: 0	Hello ! Good news ! I follow your instructions and i've choosen and install this ROM to hard reset : 0PFJIMG_A51_UL_M60_DESIRE_SENSE70_MR_HTC_Europe_3. 17.401.3_Radio_01.01.010_U10305041_08.01.50512_rel ease_478318_combined_signed The phone updates and at the end "image boot failed" but the device the phone still updated and works... So thank you very much !!! (sorry for the double post but i can't edit the previous).