UART port for G850xx Phone repair

[ysr84]

Hi Octopus,

I would like to inform you that you have great solutions and amazing support for your users. I have not seen such a committed team who responds to their customers issues.

Anyways, I had a request / proposal / feedback as we have models from At&t which are not rootable. I was hoping if your team can provide uart compatible cert writing which would not require root. As we can easily reset efs via code.

This would really help the community.

Thanks,

[Octopus box]

Hi.

Thanks for your pleasant words and qualified helps and advices to out users in our section, always pleasantly to see posts from experienced spesialist.

About your suggestions - we will think how to do this and will try to release these features in one of the future Software updates.

Thanks.

[ysr84]

Just to confirm the N910A / G850 variant are working via Octopus using the UART potrt... I still have to try N915T using the N910T model... unless OCtopus can send me the BETA test software


Thanks,

[flashing09]

select manual n910a and it will write any cert you want via uart

[7777]

Originally Posted by flashing09

select manual n910a and it will write any cert you want via uart

Im already try.but it doesnt work when select n910a to write CERT for G850A over UART cable,Because Octopus have an option checked CERT before write to phone,so the result will be failed to write CERT
Certificate is not compatible
Writing CERT failed
Or do you have any clue can write CERT g850a over UART cable?
Thanks
Note: im using G850F CERT write to G850A

[flashing09]

Originally Posted by 7777

Im already try.but it doesnt work when select n910a to write CERT for G850A over UART cable,Because Octopus have an option checked CERT before write to phone,so the result will be failed to write CERT
Certificate is not compatible
Writing CERT failed
Or do you have any clue can write CERT g850a over UART cable?
Thanks
Note: im using G850F CERT write to G850A

It should work fine . I have been doing n915a that way by selecting n910a and checking manual . So g850a should be the same . I also used g900t to fix g870a

Is there root for the g850a ? If so try selecting g900t

Otherwise you can always write a cert via at commands

[Hamzues]

what are those comands. sorry i am new

[7777]

Originally Posted by flashing09

It should work fine . I have been doing n915a that way by selecting n910a and checking manual . So g850a should be the same . I also used g900t to fix g870a

Is there root for the g850a ? If so try selecting g900t

Otherwise you can always write a cert via at commands

Im already try select different model and checked manual,but the result remain the same .If you dont mind,could you please share how to write CERT over the command UART'port?
Thanks for your help
I did wipe EFS by code
i did try g900f to g870a but checked CERT fail
I will try again use n900t write to g870a as you mentioned

[ecs87]

Originally Posted by 7777

Im already try select different model and checked manual,but the result remain the same .If you dont mind,could you please share how to write CERT over the command UART'port?
Thanks for your help
I did wipe EFS by code
i did try g900f to g870a but checked CERT fail
I will try again use n900t write to g870a as you mentioned

Are you sure the CERT file you're using is a proper CERT file? The manual select should allow you to write any CERT you want as long as the PHONE (not software) recognizes it. Obviously if the phone doesn't recognize it, the CERT writing process is going to send back an error triggering the program to either end or send an error (cannot write CERT).

[Octopus box]

Also, please post here full Software log with all of your actions.

[baomobile]

To connect SM-G850A phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
-----------------------------------------------------------------------------------
Platform: Samsung Android
Selected port: COM10
Selected model: SM-G850A
Selected file: F:\Samsung\SS CERT FILE\g850f\Cert-SM-G850F-
355210062179805-RF8F91MC20Z.cert
Powered on perform the following steps:
1. Connect phone via UART cable to the Box.
2. Note: phone screen must be active
Connecting to phone, please wait...
Found phone on COM10
Phone connected successfully
Checking Certificate file...
Certificate file successfully checked
Writing new phone IMEI...
Checking certificate compatibility...
Certificate is not compatible
Writing Certificate failed

The manual is selected

[ysr84]

Clearly G850F is not compatible with G850 A / W ... if you use the correct cert file it would work flawlessly.... have done more than 10 devices

[7777]

Originally Posted by ysr84

Clearly G850F is not compatible with G850 A / W ... if you use the correct cert file it would work flawlessly.... have done more than 10 devices

Yes, i do think so.Give me an offer for your working CERT for G850A,how about N915A you told me in PM?BL CERT is ok,im just want to testing
Let me know
Thanks

[ysr84]

Octopus has many certs posted now..... please check... most are BL

[jawi]

Originally Posted by ysr84

Octopus has many certs posted now..... please check... most are BL

ya most are BL..what abt u..ur cert CLN?if u r using pvt then CLN