Hi,
I am using samsung galaxy S5 SM-G900R7, i am able to root this phone then started trying flashing of custom boot.img contating custom zImage. ODIN is showing successful flashing , but when i am restarting its always going in download mode with error message "couldn't do normal boot" . In download mode there is a line "QUALOCM SECUREBOOT : ENABLE". I doubt this is beacuse of locked bootloader.
I want to know is it really beacuse of locked bootloader?
I downloaded kernel for my phone model from samsung official website mentioned below and built in same way they have given instruction, so i ahve less doubt on custom zImage.
http://opensource.samsung.com/reception/receptionSub.do?method=sub&sub=F&searchValue=900r7
if yes then i have second question is it unlockable or not, i am not getting any unlocking method for samsung galaxy S5. whatever info i am getting regarding unlocking is upto galaxy S3 but not helpful for galaxy S5. PLease help me to come to a final conclusion on flashing custom zImage to phone.
arvind3023 said:
Hi,
I am using samsung galaxy S5 SM-G900R7, i am able to root this phone then started trying flashing of custom boot.img contating custom zImage. ODIN is showing successful flashing , but when i am restarting its always going in download mode with error message "couldn't do normal boot" . In download mode there is a line "QUALOCM SECUREBOOT : ENABLE". I doubt this is beacuse of locked bootloader.
I want to know is it really beacuse of locked bootloader?
I downloaded kernel for my phone model from samsung official website mentioned below and built in same way they have given instruction, so i ahve less doubt on custom zImage.
http://opensource.samsung.com/reception/receptionSub.do?method=sub&sub=F&searchValue=900r7
if yes then i have second question is it unlockable or not, i am not getting any unlocking method for samsung galaxy S5. whatever info i am getting regarding unlocking is upto galaxy S3 but not helpful for galaxy S5. PLease help me to come to a final conclusion on flashing custom zImage to phone.
Click to expand...
Click to collapse
As far as I'm aware most Samsung devices if not all have unlocked bootloaders, as for a soloution I haven't seen anything really but some say you need to re-flash stock then try from scrath or make a backup after reflashing stock and a custom recovery then format and restore to get it working.
TechMinerUK said:
As far as I'm aware most Samsung devices if not all have unlocked bootloaders, as for a soloution I haven't seen anything really but some say you need to re-flash stock then try from scrath or make a backup after reflashing stock and a custom recovery then format and restore to get it working.
Click to expand...
Click to collapse
Thanks a lot for your reply,
I searched regarding this and i found latest samsungs are coming with KNOX security in which SECUREBOOT is there, which doesn't allow phone to boot with any boot image if chacksum value doesn't match. so i feel even if bootloader is not locked here but same thng KNOX security is doing. Help me if you have any idea how to disable it in samsung galaxy S5. Getting way how to disable in previous series but not finding method how to do for galaxy S5.
arvind3023 said:
Thanks a lot for your reply,
I searched regarding this and i found latest samsungs are coming with KNOX security in which SECUREBOOT is there, which doesn't allow phone to boot with any boot image if chacksum value doesn't match. so i feel even if bootloader is not locked here but same thng KNOX security is doing. Help me if you have any idea how to disable it in samsung galaxy S5. Getting way how to disable in previous series but not finding method how to do for galaxy S5.
Click to expand...
Click to collapse
Looks like getting rid of KNOX is a difficult task but not impossible: http://www.s4miniarchive.com/2013/12/how-to-remove-knox-bootloader-from-new.html
TechMinerUK said:
Looks like getting rid of KNOX is a difficult task but not impossible: http://www.s4miniarchive.com/2013/12/how-to-remove-knox-bootloader-from-new.html
Click to expand...
Click to collapse
Thanks for your reply,
I think your post brought me closer to soltution. Tommorw i have to try this. The only problem now i have that i am not getting firmware for my phone model SM-900R7, I am getting firmware for model number SM-900R6 which is very close to this not not exactly for SM-900R7. I have to search more to get it, i hope i will be able to find it.
Thanks again for your valuable post.
arvind3023 said:
Thanks for your reply,
I think your post brought me closer to soltution. Tommorw i have to try this. The only problem now i have that i am not getting firmware for my phone model SM-900R7, I am getting firmware for model number SM-900R6 which is very close to this not not exactly for SM-900R7. I have to search more to get it, i hope i will be able to find it.
Thanks again for your valuable post.
Click to expand...
Click to collapse
No problem, good luck with removing KNOX
TechMinerUK said:
No problem, good luck with removing KNOX
Click to expand...
Click to collapse
Hi,
Yesterday night you posted a link, that link was good but still my requirement is different.Yesterday i was not able to go through whole link you provided to me, today i was reading the whole article. its looks like they are trying to save warrany of phone even after flashing custom ROM. They are deleting bootloader contents of flashing ROM, even i will flash custom ROM with deleted bootloader contents, In phone bootloader will remain same with KNOX SECUREBOOT feature. My target is to flash with KNOX disabled bootloader so it will not stop booting with custom zImage.
TechMinerUK said:
No problem, good luck with removing KNOX
Click to expand...
Click to collapse
Actaully that link was removing KNOX from firmware which you are going to flash not from phone if you have already KNOX is there. That is for if your mobile is not having KNOX and you dont want KNOX when you are going to flash with recent updated firmware so you can delete KNOX contents from firmware and can flash.
arvind3023 said:
Actaully that link was removing KNOX from firmware which you are going to flash not from phone if you have already KNOX is there. That is for if your mobile is not having KNOX and you dont want KNOX when you are going to flash with recent updated firmware so you can delete KNOX contents from firmware and can flash.
Click to expand...
Click to collapse
Hmm, it appears it not possible due to it having a locked bootloader/KNOX not being removable
http://forum.xda-developers.com/verizon-galaxy-s5/help/g900r7-problem-t2877527
TechMinerUK said:
Hmm, it appears it not possible due to it having a locked bootloader/KNOX not being removable
http://forum.xda-developers.com/verizon-galaxy-s5/help/g900r7-problem-t2877527
Click to expand...
Click to collapse
Thats my problem is i am not getting concrete answer either some good link or something official from samsung to come to conclusion of NO, searching searching trying this and that with a hope that its possible.
arvind3023 said:
Thats my problem is i am not getting concrete answer either some good link or something official from samsung to come to conclusion of NO, searching searching trying this and that with a hope that its possible.
Click to expand...
Click to collapse
I would pressume their will be some method of doing it and if it's not released yet it will be soon...
I guess it's just best to bide time and wait untill a concrete method has been developed
I have a galaxy s6 bought from malaysia and it was region locked. I initially thought it will be easy to unlock but I couldnt unlock it so I took it to local mobile service center. There they unlocked the phone. I dont know how they unlocked it but I think he used some box like octoplus. When I recieved the phone from him it was rooted and the knox counter was tripped.
I know I have voided the warranty but thats fine. Now I dont recieve any updates from Samsung. I want to flash the original samsung firmware back and I have the following clarification before doing it by myself.
1. If I flash the original samsung firmware using smart switch or odin will the phone be unrooted and will I start receiving updates
2. Currently in my smart manager-> device security it says security threat found and I get the notification "unauthorized action detected restart your device to undo any unauthorized changes". Will this error message go off and will the device threat go off.
3. Will installing My knox cause any problem or I should avoid installing it ?
4. Currently "In find my mobile" remote controls is not getting enabled. Will the find my mobile feature start working after flashing the official firmware.
Thanks in advance
Rahul
srahulmca said:
I have a galaxy s6 bought from malaysia and it was region locked. I initially thought it will be easy to unlock but I couldnt unlock it so I took it to local mobile service center. There they unlocked the phone. I dont know how they unlocked it but I think he used some box like octoplus. When I recieved the phone from him it was rooted and the knox counter was tripped.
I know I have voided the warranty but thats fine. Now I dont recieve any updates from Samsung. I want to flash the original samsung firmware back and I have the following clarification before doing it by myself.
1. If I flash the original samsung firmware using smart switch or odin will the phone be unrooted and will I start receiving updates
2. Currently in my smart manager-> device security it says security threat found and I get the notification "unauthorized action detected restart your device to undo any unauthorized changes". Will this error message go off and will the device threat go off.
3. Will installing My knox cause any problem or I should avoid installing it ?
4. Currently "In find my mobile" remote controls is not getting enabled. Will the find my mobile feature start working after flashing the official firmware.
Thanks in advance
Rahul
Click to expand...
Click to collapse
if you have tripped knox to 1 then the warranty is voided. you can't unvoid it. furthermore, malaysian SGS6 are G920F, which is supposed to be international unlocked versions. where did you buy this in malaysia? i hope it's not low yat or some shady place.
Yes its G920F. All Samsung galaxy phones are region locked irrespective of where its bought. I dint buy in low yat. But I just curious why you are skeptical about low yat ?. Is low yat not a good place to buy ?
I know I have voided the warranty but I want to know the answer to the above questions
srahulmca said:
Yes its G920F. All Samsung galaxy phones are region locked irrespective of where its bought. I dint buy in low yat. But I just curious why you are skeptical about low yat ?. Is low yat not a good place to buy ?
I know I have voided the warranty but I want to know the answer to the above questions
Click to expand...
Click to collapse
you should try installing the official firmware through smart switch first. then slowly work on the rest. use emergency firmware initilization.
2. i'm not sure.
low yat can sell you at a cheap price, but i have had friends who had been conned of several things there before.
I am sure many would have tripped Knox and flashed stock firmware and you must be having answers to my clarification. Can anyone help me by answering my questions
srahulmca said:
I am sure many would have tripped Knox and flashed stock firmware and you must be having answers to my clarification. Can anyone help me by answering my questions
Click to expand...
Click to collapse
bro, i suggest you try installing Smart Switch on your PC, then click more at the top right hand corner, click emergency firmware initialization > Device initialization > Key in SM-G920F > key in your Serial number > click okay (make sure to back up first) then install the latest firmware. That should unroot your phone. The rest of the questions you asked, may be fixed after you unroot your phone
Ok. Thanks zincsnow. I will try it.
srahulmca said:
Ok. Thanks zincsnow. I will try it.
Click to expand...
Click to collapse
no problem, let me know if you need any more help. but quote me so i can be notified
Did the guys in the local mobile devices center tell you that their actions will trip knox and void your warranty?
No they didnt tell me.
srahulmca said:
No they didnt tell me.
Click to expand...
Click to collapse
you should talk to them about this. this is very irresponsible of them
This is India, you cannot do much. Any how I cannot use samsung Malaysia warranty here. I will not be using samsung pay here. My only concerns is getting OTA updates from samsung and find my mobile to work, because I have a previous experience of losing my phone.
zincsnow have you tripped the knox. if yes and if you are on stock firmware back. What does the device security under smart manager say ?
srahulmca said:
This is India, you cannot do much. Any how I cannot use samsung Malaysia warranty here. I will not be using samsung pay here. My only concerns is getting OTA updates from samsung and find my mobile to work, because I have a previous experience of losing my phone.
zincsnow have you tripped the knox. if yes and if you are on stock firmware back. What does the device security under smart manager say ?
Click to expand...
Click to collapse
alright then. i have tripped knox but i haven't gone back to stock.
Bro, please follow this link to unroot your galaxy S6 and bring it back to stock.
you'll be able to update your device normally after that.
I have updated my device using smart switch now everything works fine. I didn't try installing my Knox because I don't need 2 environments one for work and personal. Thanks all especially zincsnow
I was surprised about one thing. I was expecting that once the installation is completed my phone will be in a new state but it had all my datas and settings intact nothing was changed, not sure if restore had run.
srahulmca said:
I have updated my device using smart switch now everything works fine. I didn't try installing my Knox because I don't need 2 environments one for work and personal. Thanks all especially zincsnow
Click to expand...
Click to collapse
srahulmca said:
I was surprised about one thing. I was expecting that once the installation is completed my phone will be in a new state but it had all my datas and settings intact nothing was changed, not sure if restore had run.
Click to expand...
Click to collapse
no worries mate. have a great day!
Hello Community!!
I have owned many androids over the years, and have recently got an S6, hoping to dive back into the game of rooting, modding and messing around until my phones works the way i want it to. There are MANY things that really Piss me off about my T-MObile variant of the S6, including the horrible battery life, bloatware, and lack of personality. I Really would love to root my device, but KNOX. OMG what is this?! If i Root, no Samsung pay? What other downsides are there to rooting? But recently, my phone installed "ANdroid Pay" SO I am thinking, I should just root, forget Samsung pay and just use Google pay or whatever they call it.
As you guys can tell from my sig, I have been very inactive on these forums. I am hoping someone can give me some advice here---
Thanks So much
EMilio
beforedenied said:
Hello Community!!
I have owned many androids over the years, and have recently got an S6, hoping to dive back into the game of rooting, modding and messing around until my phones works the way i want it to. There are MANY things that really Piss me off about my T-MObile variant of the S6, including the horrible battery life, bloatware, and lack of personality. I Really would love to root my device, but KNOX. OMG what is this?! If i Root, no Samsung pay? What other downsides are there to rooting? But recently, my phone installed "ANdroid Pay" SO I am thinking, I should just root, forget Samsung pay and just use Google pay or whatever they call it.
As you guys can tell from my sig, I have been very inactive on these forums. I am hoping someone can give me some advice here---
Thanks So much
EMilio
Click to expand...
Click to collapse
There are pros and cons to root.
The first pro is limitless customizations and personalizations.
The first con is OTA updates get disabled.
Another pro is you are able to dramatically improve battery and overall performance using various apps.
Another con is your warranty will be void, assuming you tripped KNOX.
If you trip KNOX, Samsung Pay no longer works; if you have root (even without touching KNOX) Android Pay does not work.
I obtained root just to prove to myself it could be done.
Since then there have been dramatic improvements with speed and battery life.
Package Disabler Pro can freeze a lot of the bloatware without root: https://play.google.com/store/apps/details?id=com.ospolice.packagedisablerpro&hl=en
Hi,
It's a highly personal decision. I myself for the first time am holding on rooting - I was the one who made the most famous Xoom rooting tool and also S4 Linux Root Script, so that tells a lot. The thing is, meanwhile my device is satisfying my needs, and I'm really curious about Samsung Pay, as it has a way wider support than Android Pay and other systems.
The best thing about rooting in my opinion was the endless system customization - specially after Xposed was released. The way better data management I had, better system control and some exclusive apps that require root or works better with root. If you are really pissed about Samsung TouchWiz apps and system "features", rooting would be a nice idea. Just keep in mind that after rooting Knox will be tripped and there's no turning back with Knox. Depending on your country, Knox trip also means warranty void, because once rooted you can unroot and make it looks like nothing happened.
Just adding what was already said, but Android Pay doesn't work with root.
All the best,
~Lord
Sent from my SM-G920I using Tapatalk
XxLordxX said:
Hi,
It's a highly personal decision. I myself for the first time am holding on rooting - I was the one who made the most famous Xoom rooting tool and also S4 Linux Root Script, so that tells a lot. The thing is, meanwhile my device is satisfying my needs, and I'm really curious about Samsung Pay, as it has a way wider support than Android Pay and other systems.
The best thing about rooting in my opinion was the endless system customization - specially after Xposed was released. The way better data management I had, better system control and some exclusive apps that require root or works better with root. If you are really pissed about Samsung TouchWiz apps and system "features", rooting would be a nice idea. Just keep in mind that after rooting Knox will be tripped and there's no turning back with Knox. Depending on your country, Knox trip also means warranty void, because once rooted you can unroot and make it looks like nothing happened.
Just adding what was already said, but Android Pay doesn't work with root.
All the best,
~Lord
Sent from my SM-G920I using Tapatalk
Click to expand...
Click to collapse
Rooting doesn't allways mean tripped knox. I have my G920F rooted and knox intact. This can be done even after updrade to 5.1.1 stok firmware.
An android phone for me is worthless without root permissions. I need it for:
adaway adds
iptables (firewall)
better battery life (debloat)
titanium backup
JuanRamiro said:
Rooting doesn't allways mean tripped knox. I have my G920F rooted and knox intact. This can be done even after updrade to 5.1.1 stok firmware.
Click to expand...
Click to collapse
I was only aware of root that can be applied before upgrade to 5.1.1.
Can you advise how you applied root after 5.1.1? Thanks.
Iceman_jkh said:
I was only aware of root that can be applied before upgrade to 5.1.1.
Can you advise how you applied root after 5.1.1? Thanks.
Click to expand...
Click to collapse
Just install de 5.0.2 engineering bootloader via ODIN. Then instal TRWP via ODIN.
After this two steps you can flash whatever you want via TRWP.
Edit: with the 5.0.2 bootloader you will loose fingerprint scanner, the rest works great, at least with the custom rom I am using.
JuanRamiro said:
Just install de 5.0.2 engineering bootloader via ODIN. Then instal TRWP via ODIN.
After this two steps you can flash whatever you want via TRWP.
Edit: with the 5.0.2 bootloader you will loose fingerprint scanner, the rest works great, at least with the custom rom I am using.
Click to expand...
Click to collapse
Keep in mind this engineering bootloader does not work with all variants. For example there is no Eng Bootloader for the Canadian phones.
Thank you both. I have the international SM-G920F (technically it's the dual Sim version, SM-G920FD, (from United Arab Emirates)).
So, to confirm, would the eng boot loader still work on my device variant, and allow root without tripping KNOX?
Sent from my SM-G920F using Tapatalk
Iceman_jkh said:
Thank you both. I have the international SM-G920F (technically it's the dual Sim version, SM-G920FD, (from United Arab Emirates)).
So, to confirm, would the eng boot loader still work on my device variant, and allow root without tripping KNOX?
Sent from my SM-G920F using Tapatalk
Click to expand...
Click to collapse
I have the single sim version of the G920F, so I don't know if it will work with the dual sim.
I don't think that it will strip you knox...
... and I think that if your phone doesn't work with this bootloader, you can just flash the correct one and make it work again.
But these are just guesses... you decide if you want to take the risk.
Good luck.
JuanRamiro said:
I have the single sim version of the G920F, so I don't know if it will work with the dual sim.
I don't think that it will strip you knox...
... and I think that if your phone doesn't work with this bootloader, you can just flash the correct one and make it work again.
But these are just guesses... you decide if you want to take the risk.
Good luck.
Click to expand...
Click to collapse
Thanks. I did some additional research, thanks to your advice about eng boot loader, and seems like it will work ☺
Sent from my SM-G920F using Tapatalk
JuanRamiro said:
I have the single sim version of the G920F, so I don't know if it will work with the dual sim.
I don't think that it will strip you knox...
... and I think that if your phone doesn't work with this bootloader, you can just flash the correct one and make it work again.
But these are just guesses... you decide if you want to take the risk.
Good luck.
Click to expand...
Click to collapse
Hi,
I wouldn't risk that "you can just flash the correct one and make it work again". If you know how a bootloader work, if it gets broken there is no way to get to Download Mode and flash a new firmware/bootloader.
For information sake, a bootloader is a piece of software that is the first thing loaded when you boot your device, it comes before anything, be it kernel, be it recovery or anything else, that means, if you have a broken bootloader, the moment you try to boot your device up, it will try loading BL and it will fail, so it will shut down back again. I've had a broken BL once before on S4, the only way to recover was a direct flash of software in system chip using a tool called JTAG.
So, all I can say to users who still didn't get it: beware with this. It seems that many people are getting successful results, but it's an extremely risk procedure, make sure you read every single instruction and follow it, the possibility of a hard brick is high.
Even still, it's a great find, thanks for sharing with me, I didn't know of this until early today .
All the best,
~Lord
I wonder whether Samsung pay will work again after reflash stock rom after root? Is it like knox, once rooted you will never have it no mater what you do including going back to pure stock?
XxLordxX said:
Depending on your country, Knox trip also means warranty void, because once rooted you can unroot and make it looks like nothing happened.
Click to expand...
Click to collapse
Did you mean, once rooted we can unroot and install the stock firmware and hence tripped Knox will be restored as well?
Or the unrooting will only help to restore the stock but the knox will continue to remain tripped. I would like to know this as I am considering purchasing S6. The last samsung phone I owned was S2 and used that for 3 full years with out any problems.
Thanks.
coolmalayalee said:
Did you mean, once rooted we can unroot and install the stock firmware and hence tripped Knox will be restored as well?
Or the unrooting will only help to restore the stock but the knox will continue to remain tripped. I would like to know this as I am considering purchasing S6. The last samsung phone I owned was S2 and used that for 3 full years with out any problems.
Thanks.
Click to expand...
Click to collapse
Once Knox is tripped its tripped but, yes you can flash original firmware and as long as you factory reset it, it will be unrooted and ready for official updates.
jetbruceli said:
Once Knox is tripped its tripped but, yes you can flash original firmware and as long as you factory reset it, it will be unrooted and ready for official updates.
Click to expand...
Click to collapse
Thanks. But can you be a bit more specific of if the unrooting, flashing stock, and factory resting will finally untrip the tripped Knox as well? My question in the event I need to take this back to a service center to claim warranty for whatever reason, is there any way for them to know that I have voided warranty if I unroot, flash back the stock and factory reset?
coolmalayalee said:
Thanks. But can you be a bit more specific of if the unrooting, flashing stock, and factory resting will finally untrip the tripped Knox as well? My question in the event I need to take this back to a service center to claim warranty for whatever reason, is there any way for them to know that I have voided warranty if I unroot, flash back the stock and factory reset?
Click to expand...
Click to collapse
Once tripped there is no going back. Voided warranty depends on laws of your country and your retailers policy.
coolmalayalee said:
Thanks. But can you be a bit more specific of if the unrooting, flashing stock, and factory resting will finally untrip the tripped Knox as well? My question in the event I need to take this back to a service center to claim warranty for whatever reason, is there any way for them to know that I have voided warranty if I unroot, flash back the stock and factory reset?
Click to expand...
Click to collapse
YOU CAN NOT UNTRIP KNOX, you can reflash your firmware from Sammobile, http://www.sammobile.com/firmwares/database/SM-G920F/
use odin and then after you flash, go into recovery or use system settings and conduct a factory reset. It will say Official in the status but, since they will reflash your rom anyways, they will see the knox trip.
It depends on where you purschased your device whether or not they will warranty it with Knox tripped.
Honestly, anyone who roots should understand this information before hand. You should always know how to return to stock unroot.
Jameslwoodward said:
I wonder whether Samsung pay will work again after reflash stock rom after root? Is it like knox, once rooted you will never have it no mater what you do including going back to pure stock?
Click to expand...
Click to collapse
After rooting my 5.1.1 without tripping Knox, with the 5.0.2 engineering bootloader (as as described a few posts ago) I have flashed a stok rom with odin and then everything went back as it was before the rooting procedure.
1. I was on stok oficial rom with oficial bootloader.
2. I lost root.
3. Knox was still intact: 0.
4. Fingerprint scanner and MyKnox worked again.
So: after upgrade to 5.1.1, rooting with the 5.0.2 engineering bootloader seems to be safe and also easy to bo back to stock... at least for my model (G920F)
Hey guys firstly i want to apologize if i'm on the wrong forum.
I have screwed up and i hope you guys could help.
I have a Samsung S6 that worked perfectly, but i wanted to sell it and buy an S7 and so i have done a "hard" factory reset by pushing Vol up, Home, Power buttons. Turns out i had to do a "soft" factory reset first.
Now when i tried to sell my phone with all parts and documents i have failed!
It turns out that the phone asks for my Samsung ID but obviously i can't remember an ID that i have created more than a year ago that was of no use to me!
I think i still have warranty but that is my last option for something like this, i have not rooted this device it runs on marshmallow.
What can i do to fix it myself?
I haven't tried flashing it with a stock rom simply because i fear that that will trigger KNOX, even though i'm desperate to fix this, i haven't crossed that border of despair.
Guys please help, i'm counting on your replies.
Thank you.
Flashing a stock rom that was made for your phone will NOT trigger knox. You can use samfirm and odin to do it
ankushkatari said:
Flashing a stock rom that was made for your phone will NOT trigger knox. You can use samfirm and odin to do it
Click to expand...
Click to collapse
Thanks for your reply, do you mean from sammobile? Also i do not remember what version if marshmallow i was running, is there a way for me to figure it out now?
Okay i figured out what version of marshmallow i was running simply because i had put updates on automatic so it must be the last 6.0.1
However i do not know anything about samfirm i have used odin before on my s4 like 3 years ago, and i only used it to root my s4.
Could anyone please help me out?
Btw, if i successfully put a stock firmware on it throigh samfirm and odin, will it remove my email? Or is it omly worth a try?
Are you certain that it will not trigger knox?
Okay i tried flashing the same firmware unto my devicd but it seems that i can't flash anything because Reactivation Lock is enabled.
I didn't enable it (at least i don't remember) mayve the marshmallow update enabled Reactivation Lock?
I'm almost at the point of throwing my phone into a wall, it's getting close.
Did you figure it out. I'm in the same boat with my S6 edge