Dear All Atom Users
For those who like the CLEAN ROM like me, i'm please introduce the WM6.1 from Master Helloworld1.
Everything is clean, fast and stable.
Your can found this rom here
Below, are some screen capture from my Atom running Helloworld1's ROM
this is for atom life?
for atom v?
Which one? There are two of them..
Well,the latest of course- R2. Delighted with this clean and fast ROM.
It is for Atom only, yeah it's quite fast n stable
Hope Master Helloworld1 will release WM6.5 for Atom soon.
I like this
I like clean ROM
my atom WM 6.0 pro CE OS 5.2.1413 ( build 18508.0.7.0 ) 2007 any newest upgrade??
dolphinxda said:
Dear All Atom Users
For those who like the CLEAN ROM like me, i'm please introduce the WM6.1 from Master Helloworld1.
Everything is clean, fast and stable.
Your can found this rom here
Below, are some screen capture from my Atom running Helloworld1's ROM
Click to expand...
Click to collapse
my atom WM 6.0 pro CE OS 5.2.1413 ( build 18508.0.7.0 ) 2007 any newest upgrade for my atom??/
that can fix lowbattery capacity and drains fast???
pls help..
[email protected]
Power
paksiregar said:
my atom WM 6.0 pro CE OS 5.2.1413 ( build 18508.0.7.0 ) 2007 any newest upgrade for my atom??/
that can fix lowbattery capacity and drains fast???
pls help..
[email protected]
Click to expand...
Click to collapse
try to install this! or ur device battery life is up, change the new one!
I have problem with this ROM
I can't touch my screen after I suspend my devices
I reflash with Sonblack ROM now
can you give me the exact one file that i should use for my atom ? plus a detail step by step of upgrading, since this is my first time on doing this.
arrghhhh..it's so frustating !!!
WHICH ONE ???
dolphinxda said:
Dear All Atom Users
For those who like the CLEAN ROM like me, i'm please introduce the WM6.1 from Master Helloworld1.
Everything is clean, fast and stable.
Your can found this rom here
Below, are some screen capture from my Atom running Helloworld1's ROM
Click to expand...
Click to collapse
can u give the direct link for the ATOM Windows Mobile 6.1 Clean ROM By Helloworld1? thanks...
@gadut
http://forum.xda-developers.com/showthread.php?t=360664
Atom release 2: http://www.mediafire.com/?jxfm09sbces
EXTROM(Should be installed on Atom if you want Atom's ROM working properly):http://www.mediafire.com/?tjyzmvific9
mns123 said:
@gadut
http://forum.xda-developers.com/showthread.php?t=360664
Atom release 2: http://www.mediafire.com/?jxfm09sbces
EXTROM(Should be installed on Atom if you want Atom's ROM working properly):http://www.mediafire.com/?tjyzmvific9
Click to expand...
Click to collapse
I only used file on Atom release 2 without EXTROM, now it's been 3 hours where the screen stuck on windows mobile display only. is this normal ? how long does it take ?
Something is wrong! Please follow all the steps, if you are using the PC Update method, as explained in the first page of Main thread.
I'm upgrading thru sdcard since my atom is not detected by activesync
gadut said:
I only used file on Atom release 2 without EXTROM, now it's been 3 hours where the screen stuck on windows mobile display only. is this normal ? how long does it take ?
Click to expand...
Click to collapse
u have to flash with the ext rom as well, if not ur rom won't work fine.
i recommend to flash atom- r1 coz everything is there, o2 media plus, o2 equalizer......
SDHC support?
does this rom have 8GB SDHC support for O2 Atom? thanks
dolphinxda said:
u have to flash with the ext rom as well, if not ur rom won't work fine.
i recommend to flash atom- r1 coz everything is there, o2 media plus, o2 equalizer......
Click to expand...
Click to collapse
i have added extrom, so there are 2 files on my sdcard. but nothing happen after except windows mobile screen only.. i have waited for 4 hours and i think that it's not working.
gadut said:
i have added extrom, so there are 2 files on my sdcard. but nothing happen after except windows mobile screen only.. i have waited for 4 hours and i think that it's not working.
Click to expand...
Click to collapse
i didn't flash via sd card, i flash via pc.
Remember! u have to add 12 bytes header first before u can flash via pc.
1. download pc update for HP by helloword1 and past diskimg.nb0 to pc update directory then run .bat file (java runtime needed)
2. after run .bat file u will get another files xxxx.nb0, take out that file then past in pc update for atom in c:\windows\temp (with extrom too)
3. connect ur atom -> run Udate Utility...... wait around 20 Minustes... done
Related
WARNING: It is possible that you can brick your device with this ROM. Use it at your own risk!
UPDATE AS OF 10 SEPTEMBER 2007
Windows Mobile 5 AKU 3.3 Final Edition
Well, I thought I could finish the WM5 series with a working Internet Sharing. I'm so sorry, it's quite buggy. I'm releasing this ROM because it is more stable than the previous one and I'll be working on newer grounds. Hope you enjoy this one.
FOR XDA ATOM / ATOM PURE ONLY: ARCHIVE.ZIP
UPDATE AS OF 15 AUGUST 2007
Windows Mobile 5 AKU 3.3.3
For XDA Atom / Atom Pure:
ATOMWM5AKU333WWE.EXE LINK1 (rapidshare)
ROM Revisions:
See: Start -> Settings -> System Info
Major Update: Upgrade the core from 195 to 461 for increased phone stability. Debug modules are removed...
OS: 5.1.461 (Build 15671.3.3.3 Atom Series)
\Memory Card\cabs\ Customization via AutoInstall script (BIG THANKS TO serialz!!!)
Special Thanks to:
mamaich, Scoter team, and bepe for their tools
serialz for his custom ROM Update Utility and ROMtoolz
cmonex for insights on XIP porting
to all Beta testers here... for the support, encouragement and helping me out
UPGRADING INSTRUCTIONS:
Execute the downloaded ROM.
Hope this new release brings more stability to the phone. This release has been with me for two (2) days already, and so far, so good.
Thank you everyone for your support.
Cheers,
Jiggs
PS: One more update release for WM5 and WM6 will be on the pipeline
KNOWN BUG: Internet Sharing application is not working. WM5 AKU3.X no longer supports modem link.
For those of you who have downloaded and flashed using SD Card method who ended up in a brick! ITEX recovers his Atom by following procedure:
1. remove SD Card
2. remove battery
3. hold camera button and reset (stylus) button
4. replace battery while still holding the buttons
This will bring you back to bootloader mode. Just flash the above DSUU.
Original XDA Atom ROM WM5 AKU 2.2 (Thanks MightyOx!)
Notes:
1. Battery on Taskbar
[HKLM\Software\Microsoft\Shell]
ShowTitleBarClock = dword:0 (0-disable | 1-enable)
2. Single Line Date on Today Applet
[HKLM\Software\Microsoft\Today]
AutoSingleLineDatePlugin = dword:0 (0-dual line | 1-single line)
Thank you share! Hope to directly wm6
jiggs said:
Okay Guys. Here is a ROM for testing purposes only. The Atom Life AKU3.3 is very much stable compared to the BENQ P51 AKU3.5 when ported to our XDA Atom.
WARNING: It is possible that you can brick your device with this ROM. Use it at your own risk! This is for XDA Atom ONLY.
UPGRADE PROCEDURE:
Your device battery must be at least 80% charged.
Enter into boot loader mode: POWER+DPAD(center)+RESET (simultaneous)
Connect device to PC using USB
Run the original ROM update Xda-Atom-ENG-20060426-MOT0822.exe
On the Welcome window, click <next>
Unzip attached nb0 file into C:\Windows\Temp Folder (overwrite existing file)
Proceed upgrading and follow on screen instructions.
Notes: Don't ask me why the upgrade is like this. I'm no cracker, and the ATOM_Software_Update_Utility.exe needs to be hacked. (someone needs to crack it. if you know how to do it PM me.) After a successful update, the device will automatically perform a hard reset. When you see the green Windows Mobile Screen and the message flashes to tap the screen, please wait for five (5) seconds before tapping.
Big thanks goes to mamaich for his tools and the Scoter Kitchen by JKR, OKI and team! For without their tools, there wouldn't be an update for the XDA Atom. Special thanks for buzz, double_04, llbasha, and others for the support and assistance.
ROM Revisions:
OS: 5.01.195.15671.3.3 Atom Life Version
OEM additions: HTC X-Button, New Menu for WM5, dotFred TaskManager & PPCcontacts Backup, Jeyo SMS backup, O2 Themes (Snow, Sunrise), Intellipad
* Original ATOM applications are still there (i.e. Photo Album, O2 SMS Plus, etc.)
* Layout is based on TofClock Icon Resources (thank you for this)
Known Bug: Midi files won't play
Enjoy!!! Diskimage_ver.Zip by Bigupload.Com
Click to expand...
Click to collapse
It is really slow site. Can you please update it to other download center ?
yanivw said:
It is really slow site. Can you please update it to other download center ?
Click to expand...
Click to collapse
Any suggestions? been looking for a faster site?
kisspass said:
Thank you share! Hope to directly wm6
Click to expand...
Click to collapse
This is the first step. Naturally, WM6 is the ultimate goal!
@jiggs
thanks jiggs for this..
can i mirror it?
the link you upload the file it seems slow..
-=[serialzs]=-
Thanks jiggs
serialzs said:
@jiggs
thanks jiggs for this..
can i mirror it?
the link you upload the file it seems slow..
-=[serialzs]=-
Click to expand...
Click to collapse
SURE! Go ahead...
nice work mate, fast and stable so far, boot time and rom is dramatically improved well done and thanks for sharing your hard work.
i forgot i upgrade my atom to atom exec rom..anyone know how to downgrade it? i just tried the "tjs0509" guide but it not works..i find another the "Xda-Atom-Exec-ENG-20060721-mod_n-fix.exe" but file doesnt exist anymore..need help..
-=[serialzs]=-
serialzs said:
i forgot i upgrade my atom to atom exec rom..anyone know how to downgrade it? i just tried the "tjs0509" guide but it not works..i find another the "Xda-Atom-Exec-ENG-20060721-mod_n-fix.exe" but file doesnt exist anymore..need help..
-=[serialzs]=-
Click to expand...
Click to collapse
you dont need the modded rom, simply extract (execute DSUU Xda-Atom-Exec-ENG-20060721-MOT0822) (or which ever Atom Exec rom you have) the files from win/temp then store these files. Execute the Atom rom (Xda-Atom-ENG-20060426-MOT0822) (or which ever Atom rom you have) then overwrite the temp files with the previous files you saved, click next then once finished put the Atom into bootloader mode and run the Atom rom Xda-Atom-ENG-20060426-MOT0822 again, wahla! If that doesnt work try doing it the oposite way around if that makes sense, good luck.
A million thank to you!! Great Work and really kind to sure it with all the ATOM user!!
Thank you for sharing.
Thx! You the man!
homer285 said:
you dont need the modded rom, simply extract (execute DSUU Xda-Atom-Exec-ENG-20060721-MOT0822) (or which ever Atom Exec rom you have) the files from win/temp then store these files. Execute the Atom rom (Xda-Atom-ENG-20060426-MOT0822) (or which ever Atom rom you have) then overwrite the temp files with the previous files you saved, click next then once finished put the Atom into bootloader mode and run the Atom rom Xda-Atom-ENG-20060426-MOT0822 again, wahla! If that doesnt work try doing it the oposite way around if that makes sense, good luck.
Click to expand...
Click to collapse
still doesnt work.. ahh..my head aching now..
-=[serialzs]=-
bro...anyone know where can i d/l the Xda-Atom-ENG-20060426-MOT0822.exe?
ckaidi said:
bro...anyone know where can i d/l the Xda-Atom-ENG-20060426-MOT0822.exe?
Click to expand...
Click to collapse
I am uploading it right now... Will let you know when its done.
ckaidi said:
bro...anyone know where can i d/l the Xda-Atom-ENG-20060426-MOT0822.exe?
Click to expand...
Click to collapse
Try this:
http://rapidshare.com/files/40346284/Xda-Atom-ENG-20060426-MOT0822.exe.html
o2 Plus over new ROM
Hi guys,
I had installed the new ROM last night and it seems to work fine.
However, when installing O2 Plus, I realized that I cannot add to the shortcuts tab a programs that resides inside the new directories.
The programs list lists me only subset of programs to add.
Any advices ?
thanks jiggs
Now flashing the your new rom
Update sucessfully And I use the ATOM ENG rom to upgrade
everything look fine
But I would like to looking a Chinese traditional ROM . I don't want any plugin software
PDAVIET ATOM WM 6.1 OS 5.2.19199 Build 19199.1.1.0 PV Version 6.1.0.3 posted in PDAVIET by medkid
Here goes the link
ironeagle said:
can someone release this PDAVIET ATOM WM 6.1 OS 5.2.19199 Build 19199.1.1.0 PV Version 6.1.0.3 posted in PDAVIET by medkid ?.. here
Click to expand...
Click to collapse
Tried downloading it from the pdaviet site but there's no link to the file....did my best eventhought i dont understand a word from the site...i hope someone ere will upload it too.....i'm usin ver 6.1.0.1
NEED urgent help
Can anyone tell me why new 6.1 ROMs not having Modem Link??? I could not use Internet Sharing properly so need Modem link app to connect my pc via GPRS... IS THIS MODEM LINK A SOFTWARE n CAN BE INSTALLED INDIVIDUALLY TOO??WHAT IS THE OPTION IN 6.1 ROMs TO CONNECT ATOM as modem??
Thanks in advance...
NEED urgent help
Can anyone tell me why new 6.1 ROMs not having Modem Link??? I could not use Internet Sharing properly so need Modem link app to connect my pc via GPRS... IS THIS MODEM LINK A SOFTWARE n CAN BE INSTALLED INDIVIDUALLY TOO??WHAT IS THE Other OPTION IN 6.1 ROMs TO CONNECT ATOM as modem??
Thanks in advance...
Great ROM...
A very clean ROM with latest softwares.
Fast and stable with latest tools.
I really like the ROM. Thanks to Medkid...
The Activesync don't work ! It's always failed to sync my contects.
The Activesync don't work ! It's always failed to sync my contects whats problem
flashed the rom ok but after it says clean boot, reset ...nothing happens... ie
after pulling the battery and turning on.. all i see is a orange star with NHT atoms and there it remains stuck... nothing happens after that...
what else can i do?
ballfire said:
flashed the rom ok but after it says clean boot, reset ...nothing happens... ie
after pulling the battery and turning on.. all i see is a orange star with NHT atoms and there it remains stuck... nothing happens after that...
what else can i do?
Click to expand...
Click to collapse
Go for a hard reset one more time .. if nothing works.. flash original ATOM ROM.
Contact sync fails
I too faced this problem. I am running Vista Home Premium and my Windows Mobile Device Center fails to sync my contacts with my Atom. I also use Ultrasoft Money, which happily syncs with Microsoft Money using the same Center.
It is really a pity since this is a superb ROM with lots of spare memory and useful software!
Try and fix it please.
Great disappointment :-(
rasel800 said:
A very clean ROM with latest softwares.
Fast and stable with latest tools.
I really like the ROM. Thanks to Medkid...
Click to expand...
Click to collapse
Sorry Guys,
I didn't checked activesync when I wrote the comment.
My ActiveSync doesn't work also.
This ROM has ActiveSync problem and some of my Applications/Games also fails to run. I think its mostly .NET Framework or SQLCE problem.
I suggest all not to use it.
The ROM was really great but these problems are very disappointing.
Waiting for update...
rasel800 said:
Sorry Guys,
I didn't checked activesync when I wrote the comment.
My ActiveSync doesn't work also.
This ROM has ActiveSync problem and some of my Applications/Games also fails to run. I think its mostly .NET Framework or SQLCE problem.
I suggest all not to use it.
The ROM was really great but these problems are very disappointing.
Waiting for update...
Click to expand...
Click to collapse
same for activesync not connect!!!!!
need solution???
GPRS not working
Hello everybody,
Great ROM, but GPRS and Activesync is not working.
Keep it up guyz.
Sorry for all of inconvenience that you have with this rom.
About AS, it worked with me as always. Pls make sure that you use the newest AS 4.5.
GPRS will work after you run Network wizard in start menu\ settings\connection
There will be Version 6.1.0.4 with IR fixed soon. Pls wait and test !!!!
dude you don't have to be sorry...the guys here in the forums should extend mo thanks to you because we still have guys like you trying to fully maximize the atom...anyway, a few bugs won't mind..
Medkid you're tops
Besides making great ROMs you are modest enough to apologize for an error which is probably not even of your making!
No tears Medkid, I'll wait for your version 4. Till then, my Atom runs on your WM6.1, build 19716.1.1.0.PV (another great ROM).
BTW is 19716 better than 19199? (these version numbers are so confusing).
I realised that in this forum there is several rom (window mobile 6)for HP ipaq 6828. Could any bros here pls tell me whose rom u think is the most stable and also consume the least battery? Please advise... Thanks
I've just switched over to helloworld1's clean WM6 ROM for iPAQ 6828, and it runs pretty fast and stable - haven't had any problems since installing it a few days ago. Battery life is pretty much the same as the default WM5 ROM.
Can be found here: http://forum.xda-developers.com/showthread.php?t=360664
me101 said:
I've just switched over to helloworld1's clean WM6 ROM for iPAQ 6828, and it runs pretty fast and stable - haven't had any problems since installing it a few days ago. Battery life is pretty much the same as the default WM5 ROM.
Can be found here: http://forum.xda-developers.com/showthread.php?t=360664
Click to expand...
Click to collapse
Hi, have you tested push mail and gprs sync? and Tomtom or any GPS software with external bluetooth gps receiver?
Thanks,
K
which version u used? i want upgrade my ipaq rw6828 but i'm confused to choose it..can u help me?
i downloaded helloworld rom put into my 1gig miniSD card. turn to my 1.5 bootloader mode wait for 6 mins and phone reboot itself into its old rom. any solution?
admin22 said:
i downloaded helloworld rom put into my 1gig miniSD card. turn to my 1.5 bootloader mode wait for 6 mins and phone reboot itself into its old rom. any solution?
Click to expand...
Click to collapse
You should have 1.00.01 BL else (exp:BL 1.00.05 not work) it wont work.
If not please flash back to BL 1.01 with below url. Before you flash with the rom you download.
ftp://ftp.compaq.com/pub/softpaq/sp34001-34500/sp34053.exe
hi chiko118 i downloaded and installed and it says device not compatible with the rom update utility.
my phone is running nhocbanme rom.
problem solved connect ur phone in bootloader mode and install the program.
hai....adminn22...
which one the most stabel and where i can find it???
and one thing i need ROM with sim tool kit
there are two populer ROM for 6828,
1. nhocbanme's ROM
This ROM full of HTC app, if you need ROM with HTC app you can go here:
http://forum.xda-developers.com/showthread.php?t=389743
2. Helloworld1's ROM
Helloworld1 is most stabel and clean ROM for 6828, i already try all version of the Helloword1 ROM, now i am on b95, everything is perfect for me. sim manager already installed too.
http://forum.xda-developers.com/showthread.php?t=360664
voquie said:
hai....adminn22...
which one the most stabel and where i can find it???
and one thing i need ROM with sim tool kit
Click to expand...
Click to collapse
thx besfren
please help me...i upgrade to this ROM
ATOM & ATOM PURE ROM WM6.5
CE OS 5.2.21234 Build 21234.5.0.1 Khoa_Ha
...but when i tried to downgrade to older versions error just pop out and cannot proceed...
i tried to flash it to my sd card but still it doesn't downgrade to older version.
please do something about this...o try this if it work or not..PLEASE HELP..i've tried everything doing those steps in this thread but still doesn't work...
PlEaSE Help...thank you
here's the link to ATOM & ATOM PURE ROM WM6.5 CE OS 5.2.21234 Build 21234.5.0.1 Khoa_Ha:
http://pdaviet.net/showthread.php?t=56876&page=1
shipuuden said:
please help me...i upgrade to this ROM
ATOM & ATOM PURE ROM WM6.5
CE OS 5.2.21234 Build 21234.5.0.1 Khoa_Ha
...but when i tried to downgrade to older versions error just pop out and cannot proceed...
i tried to flash it to my sd card but still it doesn't downgrade to older version.
please do something about this...o try this if it work or not..PLEASE HELP..i've tried everything doing those steps in this thread but still doesn't work...
PlEaSE Help...thank you
here's the link to ATOM & ATOM PURE ROM WM6.5 CE OS 5.2.21234 Build 21234.5.0.1 Khoa_Ha:
http://pdaviet.net/showthread.php?t=56876&page=1
Click to expand...
Click to collapse
Take out Device Update Utility from this rom then put in Temp folder in Widnows with ROM that u want to flash back (example 6.1 file)
Run Device Update Utility i will take ROM 6.1 to flash on ur device!
Cheer
you can try this step
download last official rom from o2 (WM5)...
remove sdcard from device
press reset + camera button (bootloader mode)
connect device to usb
run DSUU from official rom O2..wait until finish
this methode work for me...when downgrade XDA Atom to WM5
Tell u a better way. Start flashing with any WM6.5 rom u got for atom. Just when the new rom loading has begun(few percentage marks), pull out the wire. The updating will stop but your phone will remain in update utility mode (even after restarting) . Now flash with any older version of rom u have. it will work. Trust me. i did the same when i was stuck in the same. Learned from trial and error. It is very tough to brick a phone. Anyone who actually bricks a phone has to be a world renowned supreme certified idiot.
Please help me, i am looking for Windows Mobile 6.5 Original Shipment for O2 Atom, which rom is the best and clean? please post me the link
If u r talking bout Atom ( black /pure), i think the rom that u r asking does not exist. all wm6.5 a cooked rom. AFAIK, O2 never release WM6.5 for atom ( black /pure). The last official rom released by O2 was WM5 version 2.2. Any other than that is cooked rom from some great ROM cooker here or somewhere else.. cheers... 73..
joncy said:
If u r talking bout Atom ( black /pure), i think the rom that u r asking does not exist. all wm6.5 a cooked rom. AFAIK, O2 never release WM6.5 for atom ( black /pure). The last official rom released by O2 was WM5 version 2.2. Any other than that is cooked rom from some great ROM cooker here or somewhere else.. cheers... 73..
Click to expand...
Click to collapse
That's right!
ATOM & ATOM PURE ROM WM6.5 CE OS 5.2.23009 Build 23009.5.3.0 Khoa_Ha is the latest rom but bluetooth is not working
so W A I T ! like me. but I try flash rom wm6.5 for atom exec on atom black it's work all function is work but when I remove battery and turn it on again the screen is not clear (like 8 bit color) SAD AGAIN 555
dragon man said:
That's right!
ATOM & ATOM PURE ROM WM6.5 CE OS 5.2.23009 Build 23009.5.3.0 Khoa_Ha is the latest rom but bluetooth is not working
so W A I T ! like me. but I try flash rom wm6.5 for atom exec on atom black it's work all function is work but when I remove battery and turn it on again the screen is not clear (like 8 bit color) SAD AGAIN 555
Click to expand...
Click to collapse
yeah keep waiting for the 6.5 clean rom
i tried all roms from pdaviet bluetooth and wifi are not working n the rom is not clean too.
thk i love O2 Atom
let's try Helloworld1 6.5 clean rom
Attention ATOM user:
68xx user please ignore this message.
I am very busy recently but I still squeeze out some time to build one newest 6.5 ROM for you. If you want test, just download below. Don't expect too much for this ROM, it may not even boot! I can't test it.
You can report the problem, but I may not fix the problem immediately.
Link:
http://www.mediafire.com/?j5dz0id2ege
__________________
You can donate me in the following link. Thanks.
https://www.paypal.com/xclick/busine...rency_code=USD
I can file setup Atom 6.5 B3 Clean By Hellowrold1 , please , Thank
mrnguyen239 said:
I can file setup Atom 6.5 B3 Clean By Hellowrold1 , please , Thank
Click to expand...
Click to collapse
U can find or can't find? if can't file, pls look at my signature u will c B3 rom.
Enjoy!
oh ya why the rom 6.5 b4 i cant find data conection
cant get setting for gprs......
somebody can tell me???
how about rom 6.5 build 21869 by helloword1 there's any bug
Network Wizard
ditzy,
Helloworld1 WM6.5 is good, only issues is unable to send via bluetooth and max. you can have is 2 bluetooth devices......but all WM6.5 for Atom is having that problem, Helloworld's version seems most stable and clean. Anyway, if you need something is set your network provider, you can use the attached file. Install it after you install Helloworld's ROM(B4 is the latest now).
Vincent
Help me flash my O2 XDA Atom
I had upgraded my phone to the official rom wm5 some time back. Now I have downloaded the wm 6 5 rom form here but I dont know how to install it. Can anyone help how to install it.
Help me flash my rom
I had upgraded my phone to the official rom wm5 some time back. Now I have downloaded the wm 6 5 rom form here but I dont know how to install it. Can anyone help how to install it