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Something is breaking the GSM Radio in US CDMA TP2's from being used with US GSM operators. Trying both a ATT and TMo SIM in a Sprint TP2 fails - network search shows no networks available.
Closer inspection shows that while the devices are SIM unlocked, they Ignore/Reject any networks with US MCC's.
Attempting to show networks with MCC 310 and 311 failed, while 334 and 666 showed up just fine.
Running the fieldTest utility (not to be confused with fieldTrial) shows the GSM radio a-flutter with activity, finding and listing UMTS and GSM networks stateside.
I've poured over the registry and nothing sticks out as the culprit for this behavior; I fear that certain MCC's are locked out of the baseband - but I'm not sure how one would go about examining such configurations and removing such limitations.
Thoughts?
Forgive my naivety, but will this benefit people like me who are VZW subscribers? Is there GSM speeds that CDMA can't reach in certain areas, which unlocking the other radios would allow us to automatically latch onto?
I'm just wondering if this discussion is geared more towards those trying to unlock to move to ATT, or if it can benefit us all equally.
fronc said:
Forgive my naivety, but will this benefit people like me who are VZW subscribers? Is there GSM speeds that CDMA can't reach in certain areas, which unlocking the other radios would allow us to automatically latch onto?
I'm just wondering if this discussion is geared more towards those trying to unlock to move to ATT, or if it can benefit us all equally.
Click to expand...
Click to collapse
I have accounts with Sprint, Verizon, and ATT. If I can pop in my ATT SIM in my Sprint TP2, and switch service at will (depending on coverage or preference), it would be most excellent.
Maybe I don't get it, but isn't this known? I thought the GSM radios were locked out in the U.S.? It has something to do with FCC compliance?
I believe US GSM frequencies are locked out via software and hardware, either by request of the CDMA carriers and/or the FCC's requirements.
jasonjoo said:
I believe US GSM frequencies are locked out via software and hardware, either by request of the CDMA carriers and/or the FCC's requirements.
Click to expand...
Click to collapse
It's an FCC thing, they have not authorized the GSM radio in it for use in the United States, even though it can do 850/1900 GSM. I'm afraid the GSM in these things is strictly for traveling outside the USA. It will show the GSM networks here, as you have found out, but the networks here will not allow it to use them, so no amount of hacks will make it work.
californiarailroader said:
It's an FCC thing, they have not authorized the GSM radio in it for use in the United States, even though it can do 850/1900 GSM. I'm afraid the GSM in these things is strictly for traveling outside the USA. It will show the GSM networks here, as you have found out, but the networks here will not allow it to use them, so no amount of hacks will make it work.
Click to expand...
Click to collapse
Are you sure about it being an "FCC thing"?
There have been a few reports of people getting an unlock code, and getting their hybrid TP2 to work domestically...sans 3G connectivity, apparently.
http://forum.xda-developers.com/showthread.php?t=555067
The cheapest I've found for an unlock code for the TP2 is $20 from here:
http://www.uniquephones.com/
but I don't know what their success rate is like; some companies charge as much as $35 for one.
That's a Canadian version though, I'm sure the models sold there are not subject to US FCC Laws.
Edit-I found this- http://www.engadgetmobile.com/2009/05/20/htc-passes-cdma-gsm-hybrid-touch-pro2-through-the-fcc/
californiarailroader said:
That's a Canadian version though, I'm sure the models sold there are not subject to US FCC Laws.
Edit-I found this- http://www.engadgetmobile.com/2009/05/20/htc-passes-cdma-gsm-hybrid-touch-pro2-through-the-fcc/
Click to expand...
Click to collapse
Hmm... SIM lock and firmware lock--both "modifiable". I have hope.
I give it a month max till there is a workaround.
californiarailroader said:
That's a Canadian version though, I'm sure the models sold there are not subject to US FCC Laws.
Edit-I found this- http://www.engadgetmobile.com/2009/05/20/htc-passes-cdma-gsm-hybrid-touch-pro2-through-the-fcc/
Click to expand...
Click to collapse
The Verizon version if you get the unlock code, it will work in the US GSM.
Gsm not enabled
Hi does anyone know if there is a work around for this it sounds like a firmware thing and not a hardware limitation also I have installed 6.5 on my GSM TP2 is there an SPL for the cdma version yet sorry to post here on this however im trying to get to the bottom of this
Thanks in advance for any help
I got my Verizon TP2 unlocked (just emailed support and they mailed back the unlock code). Popped in my Orange (UK) SIM, told the phone to use GSM only and was able to TXT/call from it and receive calls/TXT just fine via my UK number. (I'm physically in the US).
So it's not a lock so much on registering with US networks... but it may be a lock on US GSM SIM cards so you can't go toss in your TMobile (US) SIM and dump VZ service.
--Chris
christr said:
I got my Verizon TP2 unlocked (just emailed support and they mailed back the unlock code). Popped in my Orange (UK) SIM, told the phone to use GSM only and was able to TXT/call from it and receive calls/TXT just fine via my UK number. (I'm physically in the US).
So it's not a lock so much on registering with US networks... but it may be a lock on US GSM SIM cards so you can't go toss in your TMobile (US) SIM and dump VZ service.
--Chris
Click to expand...
Click to collapse
This is great news! I like to unlock any GSM enabled phone I get for Verizon, just in case I ever decide to leave - so I can take my phone with me
I'll be unlocking mine tomorrow when I get it, if they'll allow it. I've been a customer for over a year, and they allowed it on the Storm and Tour, so this shouldn't be a problem.
I've been with them for several years and as far as I know as long as you're current on your bill they'll give you the unlock code. I had mine for 2 whole days and they gave it to me.
--chris
.mak said:
This is great news! I like to unlock any GSM enabled phone I get for Verizon, just in case I ever decide to leave - so I can take my phone with me
I'll be unlocking mine tomorrow when I get it, if they'll allow it. I've been a customer for over a year, and they allowed it on the Storm and Tour, so this shouldn't be a problem.
Click to expand...
Click to collapse
Well thats good news I will see if Sprint allows me to do the same as I have accounts with AT&T and TMO also I would really like to use this on my ATT plan but it appears from reading the previous posts that perhaps US based sims are locked out I will attempt to unlock it tommorow nonetheless and see what happens on the other hand my VZW Storm worked like a charm after getting it unlocked ........... for some reason this seems different though if the FCC notice is read at face value Anyone having any experience with this giving feedback would be much appreciated
christr said:
I've been with them for several years and as far as I know as long as you're current on your bill they'll give you the unlock code. I had mine for 2 whole days and they gave it to me.
--chris
Click to expand...
Click to collapse
Are you with VZW OR Sprint
dooglesmail said:
Are you with VZW OR Sprint
Click to expand...
Click to collapse
Yes are we talking VZW or Sprint?
I have had my phone two days on VZW. The CSR first said I have to wait 60 days, then checked with T2 and came back and said it is not available. I am sure he doesn't know what I was talking about. I will call again and then a third and if that doesn't work I will just email support as mentioned above. I need an unlock code before November as I will be on the road again overseas and I don't want to pay crazy International VZW rates!
californiarailroader said:
It's an FCC thing, they have not authorized the GSM radio in it for use in the United States, even though it can do 850/1900 GSM. I'm afraid the GSM in these things is strictly for traveling outside the USA. It will show the GSM networks here, as you have found out, but the networks here will not allow it to use them, so no amount of hacks will make it work.
Click to expand...
Click to collapse
mmmmmmmm. do i have a fellow railroader on this site besides me??????
unorthodoxx said:
Yes are we talking VZW or Sprint?
I have had my phone two days on VZW. The CSR first said I have to wait 60 days, then checked with T2 and came back and said it is not available. I am sure he doesn't know what I was talking about. I will call again and then a third and if that doesn't work I will just email support as mentioned above. I need an unlock code before November as I will be on the road again overseas and I don't want to pay crazy International VZW rates!
Click to expand...
Click to collapse
Hmmm VZW Global support was not given the instructions to SIM unlock this TP2 from HTC. Sounds strange to me, has anyone had any luck getting it unlocked in order to use and overseas SIM while overseas instead of the VZW SIM with access to high rates?
I will contact HTC.
So are all verizon Rhodium phones CDMA with GSM only when out of country?
Which meaning at the moment have no HARD-spl and are able to flash?
I've added some custom apps to my phone which is from verizon and is not flashed. So i was just curious.
Thanks,
Alfredo
SlashX1896 said:
So are all verizon Rhodium phones CDMA with GSM only when out of country?
Which meaning at the moment have no HARD-spl and are able to flash?
I've added some custom apps to my phone which is from verizon and is not flashed. So i was just curious.
Thanks,
Alfredo
Click to expand...
Click to collapse
If you call Verizon (and have their service for awhile, in good standing) they will guide you to unlocking the SIM slot 'for use outside of the country'. Once unlocked, it will work with TMobile, AT&T and any other GSM provider in the US that doesn't do IMEI checking, or that allow the TP2 on their network, in which IMEI checking wouldn't be a problem.
Anyways, get the unlock code for your device (specific to your device) from Verizon, scroll to SETTINGS on the homescreen, click ALL SETTINGS, click PERSONAL, click SECURITY and enter the unlock code they gave you and your phone will SIM unlock itself.
As for Hard-SPL, I haven't seen anything about it yet.. but I haven't been searching, since the phone already does what I'd like it to with simple cab installs.
I hope this helps!
-mak
Yeah ive had verizon for a good amount of years now. So i might give that a try. and yeah. I agree about hard SPL.
Are there any other advantages to unlocking the sim card other then being able to change services?
I am still new with all this, and unaware the advantages of unlocking the SIM card.
Curious for In Country and Out of country.
Like what are benefits of it while still in the states?
and what are the benefits if i go to canada? does this mean i don't have to pay extra for the plan while in canada to make phonecalls/texts/data?
.mak said:
Anyways, get the unlock code for your device (specific to your device) from Verizon, scroll to SETTINGS on the homescreen, click ALL SETTINGS, click PERSONAL, click SECURITY and enter the unlock code they gave you and your phone will SIM unlock itself.
-mak
Click to expand...
Click to collapse
I believe you may be incorrect on that, check this out, I have yet to verify this my self but from what I have read here and other places the GSM will be unlocked for use overseas. This way you can use another country's SIM card instead of Verizon's SIM (expensive rates) while overseas for an extended period of time.
There are now several threads in several forums about this.
What people often leave out when they talk about what their phone can do is what carrier they have it on.
With Verizon, when you SIM Unlock the phone you can toss in any SIM and it'll work. I personally have a UK SIM and works fine in the US on my Verizon TP2 unlocked. Others have reported using TMobile (US) or AT&T (US) SIM's just fine in their Verizon TP2's after unlocking.
Sprint TP2's come unlocked but will NOT register at all on US carriers (even with a foreign SIM).
--Chris
Oh so i have to somehow get a hold of another sim card?
nowwww i get it.
so unless i plan on actually going out of country there really is no point in unlocking my phone.
SlashX1896 said:
Oh so i have to somehow get a hold of another sim card?
nowwww i get it.
so unless i plan on actually going out of country there really is no point in unlocking my phone.
Click to expand...
Click to collapse
I unlocked mine, just in case I ever decide to leave Verizon to go to Tmobile or AT&T (yeah, right lol).. or for when I upgrade, it makes it more universal when it comes time to sell it.
It costs you nothing if you're a Verizon customer in good standing, I'd unlock it just in case
-mak
Yeah good point. I was more curious on flashing purposes, but TBH i have no use to flash it. Though once the markeplace comes out, im assuming its going to be like the iphones appstore? and hoping in time we find ways to "jailbreak" or something to get them free, thats always fun lol.
Now i do travel to canada a lot. But unlocking it has no use unless i actually pay for the plan and a sim card? I know verizon offers a plan for it, but i dont got that much to where il pay extra for the plan was just curious.
SlashX1896 said:
Now i do travel to canada a lot. But unlocking it has no use unless i actually pay for the plan and a sim card? I know verizon offers a plan for it, but i dont got that much to where il pay extra for the plan was just curious.
Click to expand...
Click to collapse
some folks over at PPCGeeks pointed out that in some situations, it might be cheaper to just buy a prepaid sim card when traveling abroad, as the prepaid cards could prove to be a cheaper alternative to verizon's international roaming rates through verizon's sim card, included with the Rhodium.
Alright, thanks i'll look into that.
the problem with going to canada is the sim card has nothing to do with their network. it is still CDMA in canada and while you may have an unlocked phone and different sim card, verizons network will still pick up your phone and charge you accordingly.
gt3dan said:
the problem with going to canada is the sim card has nothing to do with their network. it is still CDMA in canada and while you may have an unlocked phone and different sim card, verizons network will still pick up your phone and charge you accordingly.
Click to expand...
Click to collapse
If you have an unlocked phone and a different SIM card in, if you set it to GSM mode Verizon won't/can't charge you for using it in Canada.
Hope thatyour right iamrobk, elsewise im confused.
Hi guys,
Easy questions I hope:
I've never (yet) got into the area of unlocking phones and I would appreciate someone just answering a couple of questions to make sure I've got the general idea of unlocking.
1.
Am I right in thinking that you have to unlock a phone so that you can use a different provider's SIM card - instead of using one that is provided at purchase time?
e.g if I have an XDA supplied by O2, I could unlock the XDA and then use a SIM card from T Mobile?
2.
Do I need to unlock my phone EVERY time I put a SIM card from a different provider in it? Or once the phone is unlocked I do not need to do it again?
e.g. If I unlock my XDA, put in an O2 SIM card, and then go on a flight abroad, can I simply pull out the O2 card and pop in one from a local shop in a different country?
3.
Do I need to keep a record of anything before I unlock it?
e.g. Are any settings needed to be recorded BEFORE YOU START in order to unlock the phone ? Do I need to record information so that in the future I can put things back exactly as they originally were.
4.
Is there any differences between unlocking phones that have PAYG or CONTRACT cards? Are there any issues here?
Thanks for answers
Anne
In the USA a un-locked fone will bring more money used or new. and also has a wider seller/buyer market.
Once unlocked that's it. any sim anytime.
we have 5 fones between the two of us ( me and my better 1/2)
2 nokia's, a palm treo, a behold and a behold II (rooted 12/1/2009)
We have just our personal sim cards from T mobile (one each) we work weird, REALLY wierd hours. Some times our smart fones don't get charged or go dead while we are out. We just pop the sim cad into one that's got enough juice to get one of the "better" fones charged.
We both rely on our fones for our jobs.
A little know fact: in the USA it's a federal law. IF you bought your fone legitamatly. IE: not stolen. the carrier must provide you with the un-lock code in 24 hours.
The people that pay 15.00 or more to have a fone unlocked are either. Un-aware of that law. In a country where it's illegal to unlock a fone. Or knowingly have a stolen fone.
1: So yes you are right you need to un-lock the fone to use another provides fone with your sim.
2: You un-lock the fone once any sim card will work after that. AGAIN your right. (provided your in a country that has the same GSM 3g 4g network)
3: ALWAYS keep a written log of any "admin" #'s given to you for a fone.
the behold has a admin # that lets you turn on all kinds of things that are "off" out of the box. and you need that # everytime you make a adminastrative change. This maybe true with other fones as well.
4: I don't know about pay as you go. I would think once unlocked you would be able to use the fone pay as you go, so long as you had minutes on the sim installed.
I'm sure there are alot of people here that know alot more than me, and can help you further. I just got back into the cell fone game about a year ago and was out of it for about 10 years.
Things have really changed, then again they really haven't changed.
HTH
Later
Rich
One thing of note is that just because a GSM phone is unlocked, doesn't mean it'll work with every carrier, as carriers will sometimes use different baseband frequencies (there are four, 850, 900, 1800, 1900mHz I think) and some phones only support 2-3 our of 4.
I'm in Canada for example, where Rogers and Fido support GSM networks (phones that use SIM cards), Bell and Telus use CDMA (phones that have ESNs programmed into them). So if I buy a Sony Xperia X1 for example, I have to be sure to buy the American version, as Rogers only supports 850mHz, and the European version of the X1 will only support 900mHz. So even if I unlock the european version of the X1, I can't use it on Rogers in Canada.
I'm guessing you're from the UK, where the market is even more diversified. 3 Mobile for example, can only use phones that support 3G (or HSDPA). A good place to look for such specs, after finding out what frequencies your carrier supports, is GSM Arena.
Howdy, so... I'm quite new, obviously.
I've searched the forums for information regarding the SGH-i727r but came to the conclusion it does not have it's own forum so info. is scattered.
My question is: What is the going official name of this phone and/or does it matter what unlock code Model I use?
IE: I have a Galaxy S II SGH-i727r however all of the unlock websites I've been to do not specifically list the SGH-i727r as a model.
Which of the following would my model be closest to? (according to cellunlocker.net):
Galaxy S II LTE i727
Galaxy S II Skyrocket LTE i727
i727 Galaxy S II LTE
Or does it make a difference?
Thanks for the (hopeful) patience
Those three models you listed are all the same as far as the i727.. are you on rogers? i would assume it's the same phone as the at&t version. I don't know for sure, but try asking cell unlocker if you aren't sure. they should be able to tell you.
EDIT: so i just went to the site, just choose one of the ones you listed.. they are all the same, choose your network and enter your imei. It shouldn't be too hard man.
It's a toughie to describe what carrier I'm with. Rogers pulled out of Northwestern Ontario and sold they're 807 numbers to our local carrier in exchange for them to use the Rogers towers.
so, in a nutshell I'm Tbaytel powered by Rogers. My phone is an SGH-i727r (the r designates it's a rogers phone), and from the information I've gathered, Rogers is the only one that is LTE branded(?)
There are only a few minor differences between the few i727's that I know of, but I just don't want to pay for one and find out it's the wrong code.
In a perfect world....
stuck? said:
It's a toughie to describe what carrier I'm with. Rogers pulled out of Northwestern Ontario and sold they're 807 numbers to our local carrier in exchange for them to use the Rogers towers.
so, in a nutshell I'm Tbaytel powered by Rogers. My phone is an SGH-i727r (the r designates it's a rogers phone), and from the information I've gathered, Rogers is the only one that is LTE branded(?)
There are only a few minor differences between the few i727's that I know of, but I just don't want to pay for one and find out it's the wrong code.
In a perfect world....
Click to expand...
Click to collapse
No difference same phone, as long as it says i727, R just stands for Rogers baseman, u can flash custom tomorrow or radio and it will have no R.
Skyrocket=LYRICS in USA.
Before paying for code, use the unlockers for SII. In the market they should work.
Good luck
odeccacccp said:
No difference same phone, as long as it says i727, R just stands for Rogers baseman, u can flash custom tomorrow or radio and it will have no R.
Skyrocket=LYRICS in USA.
Before paying for code, use the unlockers for SII. In the market they should work.
Good luck
Click to expand...
Click to collapse
The unlockers do NOT work for our phone, sim unlock code must be obtained from an unlock site
I'm not going to say you are wrong or not, but if I recall (and I could also recall wrong) there were a few MINOR differences between brands of the models.
As well, 2 of those 3 devices are 24.99$ while the other is 7.99$ To me at least, that says they're different.
Gonna try searching more, thanks for the help.
CellUnlockedNow.com worked for me on my Rogers S2 LTE. Can't remember how much but it was cheaper than the rest without messing around with discount codes.
This is not a shill
Honestly, a bit hesitant on the cellunlockednow website. Read lots of bad reviews. But kudos if it was working for you
I'm back stuck in a .. equation again. I have a Rogers BRANDED phone but it's locked to my local carrier Tbaytel.
The only site that I have seen thus far with an unlock code for the Tbaytel network is Canadagsm dot com. Offering an unlock code for 35$! Seems a bit steep but, maybe it's because it's a goofy network and not a big telecomm one?
Borrow a Rogers sim card and unlock it, that should work. It'll save you $10, at least
I apologize, as I read through this I think i just made some things more confusing than they actually are, but I dug deeper and got a bit more info.
The phone is all Rogers. But just Tbaytel is a reseller of their phones. So my phone (SIM card?) is locked to the Tbaytel network.
I do, however, possess my old Rogers SIM card still.
However, my knowledge is that Tbaytel does NOT have any towers that are GSM compatible, and are strictly CDMA towers.
If I were unlock my phone with the Rogers SIM would that not still leave me with my Tbaytel sim LOCKED to the Tbaytel network? I could always use that Rogers SIM to get on their GSM networks, but as soon as it's plopped in my new phone its incompatible.
Again, I'm sorry for all of my confusing, queer'd up posts. It's a mess of a situation with an even messier carrier (tbaytel).
Might be wrong but i'm reading everywhere that the Samsung model is GT-I9210T. Hope that helps.
Use this option:
http://www.cellunlock.net/Unlock_Rogers_Fido_phones_p/rogersfidoimei.htm
Plus the code 'android50' and it's $8.50CAD. That's how I got mine.
They'll need the IMEI obviously and the model, I just put SGH-I727R.
Took them a little longer (28 hours) but it was worth the money I saved.
skaoiboy said:
Use this option:
http://www.cellunlock.net/Unlock_Rogers_Fido_phones_p/rogersfidoimei.htm
Plus the code 'android50' and it's $8.50CAD. That's how I got mine.
They'll need the IMEI obviously and the model, I just put SGH-I727R.
Took them a little longer (28 hours) but it was worth the money I saved.
Click to expand...
Click to collapse
Thanks, Just ordered
===
Just a quit note: I got the code and tried to unlock on ICS but no success. Then I reflashed back to GB and it went through.
Figured i'd update everybody.
Tbaytel fried my old Rogers SIM when they transfered my phone number from the Rogers SIM to the new Tbaytel SIM.
Therefore, I cannot use my old Rogers SIM to unlock.
So with this information, is it possible to use the current Tbaytel SIM to unlock the phone, and WITH THAT SIM be able to access the GSM network? As it stands the phone/SIM card is LOCKED to the TBAYTEL HSPA+ network and if I go into my network settings and choose GSM ONLY, I won't get registered on the network.
I'm very disgusted with Tbaytel but they are practically the only option, other than going with Koodo and using the CDMA network (plus crappy phones).
*also, should I root first or unlock then root?*
stuck? said:
*also, should I root first or unlock then root?*
Click to expand...
Click to collapse
That's two different things. does not really matter.
Thanks for all the help this far, and sorry to be an idiot again. Just a quick question.
For unlocking, do I need to use an ACTIVE SIM card? I have 2 old inactive Rogers cards @ home, but I just thought that I may need an active one to do the unlocking.
And if so, will using it to unlock my phone have any consequence on the other person's SIM card?
stuck? said:
Thanks for all the help this far, and sorry to be an idiot again. Just a quick question.
For unlocking, do I need to use an ACTIVE SIM card? I have 2 old inactive Rogers cards @ home, but I just thought that I may need an active one to do the unlocking.
And if so, will using it to unlock my phone have any consequence on the other person's SIM card?
Click to expand...
Click to collapse
You can try your old card. if not working just put an active card from other carrier. It will popup a windows ask your network unlock code. type the code to unlock. if succeed your phone will be working under other carrier; if not it will keeps popping up the window asking the code. There is no harm to other person's card.
This should be in q&a
Sent from my SAMSUNG-SGH-I727 using Tapatalk
nrm5110 said:
This should be in q&a
Sent from my SAMSUNG-SGH-I727 using Tapatalk
Click to expand...
Click to collapse
Sent From my Two Tin Cans & String Device on The Wookie Network
skaoiboy said:
Use this option:
Plus the code 'android50' and it's $8.50CAD. That's how I got mine.
They'll need the IMEI obviously and the model, I just put SGH-I727R.
Took them a little longer (28 hours) but it was worth the money I saved.
Click to expand...
Click to collapse
Just ordered. Wait and see.
Hello all, I have an HTC One M8 that I bought while working in the US for a year. I am back in Canada and want to use it with Rogers or Bell doesn't matter who. I thought it was unlocked so I could use with anything but apparently I was miss-guided.
When I put in a Rogers SIM card it says SIM from Unknown Source or something along those lines. When I go into about in settings I can see that it picks up the signal for rogers and also shows my cell phone number. I'm guessing there is some sort of way I can make this thing work here?
Can I overwrite the ROM and put a Rogers ROM in? I have no clue. This is about as far as I get with phone tech.
Any help would be greatly appreciated.
Hi!
Verizon M8 is sold "internationally unlocked", so Verizon customers can use it everywhere in the world: not just the CDMA networks (Verizon's) but also in GSM networks (most widely spread standard). I live in Spain and mine works in a GSM/LTE network perfectly and it does too in France, Germany or Italy.
For your mobile to work in Canada, you have to make sure your phone is sim unlocked. If you purchased it to verizon you can ask them to remotely unlock it, as you've paid for it, and they will. They may take some time, but they will. Once it is sim unlocked, you will be able to use it with any other operator's sim.
Note that, even when it is sim unlocked (and functional), you may be receiving a notification of "unknown sim" when the phone starts and an icon in the tray. It's just a software issue, as it will work, but to make it dissapear you have to do much more complicated things (unlock the bootloader, get root privileges) and i'm not sure it is worth if you're not familiarized with these sort of things.