[Q] Lost drm keys, dhcp error - Sony Xperia M

Hi guys, maybe someone can help me. I have unlocked boot loader on xperia m, then locked it back and the bad thing is I didn't do back up of drm keys. so now when i do screen mirroring I get dhcp error. Is it possible to disable dhcp check or get drm keys somewhere? installing custom firmware is not an option, because I was late to work once because alarm failed on custom firmware and had other few bugs. is there any solution to make screen mirroring workk again? now I'm running 4.3 rooted. thanks guys

no ideas?

I can tell you that you have got no way of getting DRM keys back as you didn't back them up. You have lost your ones forever and you cannot install anybody else's as they are device specific and will hard brick your phone if you attempt it.
As for the DHCP check, I am unsure of if it is able to be disabled as I am assuming it requires your DRM keys before it is able to work.

I found that there is some fix for xperia z to disable dhcp check, but it's not working on xperia m. I spent hours doing a research on this problem, many people have it, so I thought some one should know something about it. I found that you can do it on cm11 but I want to use official firmware. Thanks

Desperately need a solution
Hi everyone!
I need the same thing as Tadokas, and so as him, I don't want to install custom rom because it still has a lot of known bugs, I really admire the custom roms cookers but at the moment I cannot install it because I use my phone mainly for work and need it as stable as possible, I really love my xperia M but eversince I unlocked the bootloader I saw myself facing this problem, and the mirrorcast was one of the main reasons I chose this phone because I would use this feature a lot to show pictures on our tv to my grandparents once they cannot properly see them on a tiny cell phone screen, even on pc they complain its not all clear for them, they're almost 80 year old and I love them.
Please, if a kind soul could give us a solution the same way they did to xperia Z, I'll be eternally greatfull!
Cheers everyone!

Related

rooting question

Hey guys,
I'm interested in rooting just so I can get tethering working and be able to delete some useless apps but I don't want to get rid of my factory Rom. What can I do? I also have not done the HTC SD update but I want to cause I don't want to spend for a new working SD card.
iLLestCoW said:
Hey guys,
I'm interested in rooting just so I can get tethering working and be able to delete some useless apps but I don't want to get rid of my factory Rom. What can I do? I also have not done the HTC SD update but I want to cause I don't want to spend for a new working SD card.
Click to expand...
Click to collapse
waiting patiently for the answer to this...
rooting doesn't give you a different rom. a different rom gives you a different rom.
iLLestCoW said:
Hey guys,
I'm interested in rooting just so I can get tethering working and be able to delete some useless apps but I don't want to get rid of my factory Rom. What can I do? I also have not done the HTC SD update but I want to cause I don't want to spend for a new working SD card.
Click to expand...
Click to collapse
Several users have reported that even after applying the OTA update, they were able to successfully root using toast's method. At the moment, I plan to apply the update and then root when I get my EVO on Monday. Unless something changes before then, it's as good as done.
Alright good stuff. Thx for replies. Do you guys know if that one step root sticks to phone even after boot?
It sticks but your not able to flash roms or do nandroid backups or anything. Your much better off using toasts method.
First thanks to all the gurus here at this amazing website were technology is constantly being challenge and and with good results. I take my hat off to you
I just wanted to bring an issue I am having and hope it can be resolve if not it will be a learning experience, but I know that with so many great people in this website I have no doubt that my issue could be resolve and if not I will continue to try to resolve the problem, I love challenges in the electronic world. I have been in it for the last 27 years.
My situation is the following:
I was able to root my phone, but have 2 questions;
1) Why when I look under superuser I have nothing in my screen?
2) Why I can't have access to my sdcard through HTC Synch even know I have update to the new firmware?
I have try this in different ways, updating to the factory software and then rooting as well as rooting first and then try to update which after thinking about it I think it was stupid of me.
I am sorry about my extended post, but I just wanted to thank you guys for your continous support to all of the cell phone community.
Again thankyou and continue the good work
First thanks to all the gurus here at this amazing website were technology is constantly being challenge and and with good results. I take my hat off to you
I just wanted to bring an issue I am having and hope it can be resolve if not it will be a learning experience, but I know that with so many great people in this website I have no doubt that my issue could be resolve and if not I will continue to try to resolve the problem, I love challenges in the electronic world. I have been in it for the last 27 years.
My situation is the following:
I was able to root my phone, but have 2 questions;
1) Why when I look under superuser I have nothing in my screen?
2) Why I can't have access to my sdcard through HTC Synch even know I have update to the new firmware?
I have try this in different ways, updating to the factory software and then rooting as well as rooting first and then try to update which after thinking about it I think it was stupid of me.
I am sorry about my extended post, but I just wanted to thank you guys for your continous support to all of the cell phone community.
Again thankyou and continue the good work

[Q] Xperia Play r800at Troubles

Hello, I was posting here because I've been having a great deal of difficulty really getting anything done with it. What I'd like to do is either unlock the bootloader, or at least root it to my computer to flash on a new ROM.
In order to root it, I was told to put it in MSC mode, allow unknown sources, and enable USB debuggin, all of which I've done. However, when I go to root it using either SuperOneClick, Doom method, or flashtool, I continually get errors, either saying ADB server is out of date, killing..., or in the case of the doom method that it cannot write any files because they are read only. Somebody mentioned you an overwrite your r800at with an r800i rom to make this work, but the link in that thread lead to some virus (I assume it was taken down a while ago). I put it to a stock AT&T ftf, and still no luck.
My problem lies in the fact that some of the threads I'm looking at are YEARS old at this point, most of the links are dead, and some of the advice is contradictory. I figured then that I could just get somebody to unlock it for money, but all the threads point to alejandrissimo, who I believe is now inactive.
All I would like is to root my phone and put on a new rom, preferably of ICS, with minimal difficulty. I've sunk something like 10 hours into it at this point, and now am the proud owner of a phone with the exact same firmware I started with. I've wiped my contacts like 8 times, and to be honest I'm just getting frustrated with the whole thing. I hate the idea of having bloatware all over my phone though.
So if anybody knows a good way either to root the r800at (and if possible could provide active links to the software), or somebody I could pay to unlock it and skip all this work, I'd really appreciate it.
Thanks for reading, have a good one.
I can't help you with unlocking bootloader (i have r800i with unlocked bootloader), but maybe i can help you with root
You didn't say what firmware are you using, but in general use Doomlord's zergrush method v4 for firmware .42 and below or Eroot on newer firmware (it's on chinese but it have one big button with word "ROOT" on it :silly: )
That is only for rooting and with that you can debloat stock firmware or use ROMs for locked bootloader.
SWM_installer V5 , should work on locked bootloader (once you get root) so you can flash custom GB roms.
To be able to install ICS/JB/CM/MIUI ROMS you must unlock your bootloader because they all don't work on stock GB kernel, and you need unlocked bootloader to be able to flash custom kernels
Here is some links, but i hope R800a users can help you more with unlocking bootloader
Xperia Play Index - ROM'S, FIRMWARE, KERNEL'S, GUIDE'S, THEMES, MOD'S
[MEGATHREAD][GUIDES][18th Dec][4Noobs] All My Tutorials!
Cyanlabs ROM Kitchen & Windows Helper Application
Thanks
First, thank you for the very informative response. Here's some additional info, I am not sure if it will be helpful to you
My current Android version is the stock AT&T 2.3.3 and my build number is 3.0.1.b.0.285. I'm honestly not sure which of these things is helpful, but I'll try that Chinese rooting method. Got a long work shift tonight, but I'll report back later.
Thank you so much, I really do appreciate it!

Help with modifying C6603

Ok, so i feel like an idiot but i really need some guidance.
I recently acquired a brand new xperia z with the UK carrier EE, really happy with it but i knew fairly soon after recieving it that i would be rooting it.
This is my 3rd xperia device and the first one that actually allows the bootloader to be unlocked, huzzah.
So i went ahead and unlocked the bootloader with no trouble at all, but the problem i am now faced with, is that i want install CWM and continue on to root the device, but since the bootloader has been unlocked, the settings menu on the phone crashes consistently and the SD card isnt working properly in the phone, when connected to my laptop the sd card is not showing either.
What im asking is, has anyone else had this problem? and does anyone know of a fix ?
i dont know what information is required so i'll provide as much as i think is relevant
Model
C6603
AV 4.3
build 10.4.1.B.0.101
if you need anything else just ask and i'll do my best to provide it
Thanks in advance!

Help with stock restore

Hi all,
Appreciate this may have been asked several times in different ways. However, I've got in over my head with this one so want to make sure the method is right for how I initially rooted my phone.
Essentially I followed the cyanogenmod wiki page which showed me how to unlock the bootloader and install cyanogenmod.
However, I now need to revert back to stock. Problem i'm having is that any guide I find talks about TA back ups (not mentioned in the original guide) and uses a tool called flashtool.
I used the flashboot method for my install so i'm just a bit confused as to how to go back. Is it true that Sony will be able to tell I modified it as I may need to return it for a warranty issue.
Useful info:
UK phone
Not locked to a network
Many thanks
They will if you didn't backup your DRM keys and are unable to restore them after relocking your bootloader
Ahh thats really irritating that their main guide mentions nothing about DRM then.
What am I likely to have lost in terms of losing that partition then? Will I definitely have lost it doing it via fastboot? It seems strange that they don't mention anything about that.
What does it mean by a DRM key anyway? is it a code for something or an actual bit of software?
How would I go about getting it back to stock?
Many thanks
You can back to stock without DRM keys but... Still you will don't have things like bionz and x reality if you don't have backup DRM keys you are screwd because you lost it forever you can't use DRM keys from other z1c
mosespl said:
You can back to stock without DRM keys but... Still you will don't have things like bionz and x reality if you don't have backup DRM keys you are screwd because you lost it forever you can't use DRM keys from other z1c
Click to expand...
Click to collapse
Thanks mosespl.
What is the best method of going back to stock when originally I used flashboot? Looking to relock the bootloader too.
The sony stuff was rubbish anyway, I got nothing but bug bug bug with it, its the main reason I rooted. What is a DRM key? I saved a code that I needed to unlock but i'm guessing that isn't it?
DRM keys are write on specific partition on your phone which is unvisible and once you unlock your bootloader without backup DRM keys you lost it. And if you relock your bootloader you won't be able to use bionz processor (photos in bad condition will be worst) and x reality. In cross device section in thread for stock Roms to revert this options but I don't know if its working you need to check. But in many thread was posted that before unlock bootloader everyone have to back up DRM keys I don't know what about good program to unlock or relock bootloader but everyone uses flashtool I think
This is the thread that mosespl is referring to. It's quite lengthy but might be worth reading and trying. You've nothing to lose I suppose (as you've already lost them).
http://forum.xda-developers.com/showthread.php?p=56541777
Thanks guys, i'll check it out.
I wish I had that guide in the first place! Can't believe such a big rom didn't even hint at it!

how to permanent disable all data connections from galaxy s4 phone

I’m new to this forum, and I’m new to android, with the minimum knowledge in developing or modifying anything in an android phone. So, I’m asking if someone has solution on my issue, should he please explain it with all the details.
I just bought 3 phones, SAMSUNG GALAXY S4 MINI VERIZON SCH-I435 - ANDROID VERSION IS 4.4.2 [maybe just 1 that I selected on the phone to update the software, and the others (I still didn’t opened it also no line on it) are maybe 4.2]; I need it for 3 employees that I want to use it with a specific program for my business that it not needed to be updated continuously, and its suppose to getting updated daily with a direct USB connection to our server.
My issue is, that for many reasons I want that the internet and any type of data connection should be fully disabled, no browser, no e-mail, no data apps, no in apps purchases, no MMS messaging, and also no video. Just Talk & Text and. So I’m wondering if it’s possible on an android phone to disable all data apps and block all data connections, in a way that it shouldn’t be able to restore it back.
Before I came here, someone told me that I can do it if I first root the phone (he also didn’t know what I need to do after rooting) he gave me to try a few programs to root the phone, Super User, TowelRoot, Kingo ROOT ,Super SU but as I see nothing worked for my phone. The SuperSU gives a message that it cannot find the SU binary, and the others don’t work for other reasons – I tried to search somewhat on the internet about this kind of problems with rooting this model phone, and I found some complicated guidance with a combination of a few downloads, what I even didn’t understand the instructions how to do it, and I’m also definitely afraid of damaging the phone, and maybe after all it will still not work for me to root the phone – and the main thing is that my goal is not rooting the phone, but to totally disable any internet and data connections from this phones.
So I’m asking if someone can please give me a step by step solution for this kind of modification on this model phones, to permanent disable all data connection from the phone, and if 1 of the steps is to root the phone, then I also need detailed information from someone who has the experience with rooting this model phone with this android version.
I will appreciate everyone’s time and effort to help me.
Thanks
P.S. if my issue can only be solved by a paid android developer, maybe… I’m willing to pay some amount to do this. So if u see this for the only solution, then please direct me to a reliable developer. depends on price, experience, and more, to decide if willing to pay
solb said:
I’m new to this forum, and I’m new to android, with the minimum knowledge in developing or modifying anything in an android phone. So, I’m asking if someone has solution on my issue, should he please explain it with all the details.
I just bought 3 phones, SAMSUNG GALAXY S4 MINI VERIZON SCH-I435 - ANDROID VERSION IS 4.4.2 [maybe just 1 that I selected on the phone to update the software, and the others (I still didn’t opened it also no line on it) are maybe 4.2]; I need it for 3 employees that I want to use it with a specific program for my business that it not needed to be updated continuously, and its suppose to getting updated daily with a direct USB connection to our server.
My issue is, that for many reasons I want that the internet and any type of data connection should be fully disabled, no browser, no e-mail, no data apps, no in apps purchases, no MMS messaging, and also no video. Just Talk & Text and. So I’m wondering if it’s possible on an android phone to disable all data apps and block all data connections, in a way that it shouldn’t be able to restore it back.
Before I came here, someone told me that I can do it if I first root the phone (he also didn’t know what I need to do after rooting) he gave me to try a few programs to root the phone, Super User, TowelRoot, Kingo ROOT ,Super SU but as I see nothing worked for my phone. The SuperSU gives a message that it cannot find the SU binary, and the others don’t work for other reasons – I tried to search somewhat on the internet about this kind of problems with rooting this model phone, and I found some complicated guidance with a combination of a few downloads, what I even didn’t understand the instructions how to do it, and I’m also definitely afraid of damaging the phone, and maybe after all it will still not work for me to root the phone – and the main thing is that my goal is not rooting the phone, but to totally disable any internet and data connections from this phones.
So I’m asking if someone can please give me a step by step solution for this kind of modification on this model phones, to permanent disable all data connection from the phone, and if 1 of the steps is to root the phone, then I also need detailed information from someone who has the experience with rooting this model phone with this android version.
I will appreciate everyone’s time and effort to help me.
Thanks
P.S. if my issue can only be solved by a paid android developer, maybe… I’m willing to pay some amount to do this. So if u see this for the only solution, then please direct me to a reliable developer. depends on price, experience, and more, to decide if willing to pay
Click to expand...
Click to collapse
Hello, i think to achive this someone have to create a modified rom(maybe based on samsung's stock or even cyanogenMod). I dont think its pretty difficult, but i dont have the wright knowledge to accomplish this.
But i can help you for rooting the phones. S4 mini s running 4.4.2(lets call it v1). But samsung pushed an update again on 4.4.2 after some months(call it v2).The v1 is easy to update with towelroot.
But the v2's kernel cant be rooted with that way. I follow some instructions from a post here on xda and i rooted mine. If you are on v2 you have to flash v1's kernel with odin, root it and then flash the v2's kernel.That's the way i did to my phone and i successfully root it.
You can download from sammobile all the stuff you need(kernels). I think it will gonna work for you too. To check if you are on the old(v1) or on the new(v2) rom, try towelroot and if it fails you are on v2, else on v1.
Thanks.
First, how do i get such kind modified rom?
second, about rooting. I tried already Towelroot and its not working, so maybe this means that i have already the update that you call V2. how could i know if i have V1 or V2?
also can you please explain me in detail your solution. Sory Im a novice in the android language. what "odin"?, how do i get it, how do i use it?, what means flash? how do i flash v1's kernel? and how do i flash V2's kernel?
Thanks again
solb said:
Thanks.
First, how do i get such kind modified rom?
second, about rooting. I tried already Towelroot and its not working, so maybe this means that i have already the update that you call V2. how could i know if i have V1 or V2?
also can you please explain me in detail your solution. Sory Im a novice in the android language. what "odin"?, how do i get it, how do i use it?, what means flash? how do i flash v1's kernel? and how do i flash V2's kernel?
Thanks again
Click to expand...
Click to collapse
About the 'modified rom' you have to wait for a response from someone with the knowledge to do this. There is no reason talking about root from now.
You can pm some developers and ask for help.
Maybe try something like LBE Security think you can deny access to things like that and maybe have a master app password. Maybe try looking under Android development forum under software or general. You may get a better response to your question, as it's pretty much just a device topic here. But I would think on Android such things should be possible.

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