Hi there,

ages ago i asked a question about where these calibration data is stored and if it wouldn't be horrible if some Unlock Software or whatever would mess with it:

http://hackint0sh.org/forum/showthread.php?t=15679

Now with the WiFi Fix tool from dev team there seems to be the answer to my question:

BB NVRAM seems to store the calibration data (okay, maybe i am the last to know, but from the link above you know i at least suspected it :-) )!

As my request for info was ignored 4 month ago, now here is my second try:

-1- If the NVRAM is not corrupt (leading to serious trouble ), is it likely that it still stores the original factory data or is any unlock or other software (now) known to alter these data ??
( In other words: DO I HAVE TO BE AFRAID OF NOT HAVING FACTORY DATA IN MY NVRAM ? )

-2- is it correct that the NVRAM stores all iPhone specific calibration data, like GSM reception calibration, WiFi calibration, Bluetooth calibration or is there yet another crucial area in the iPhone that is SPECIFIC to the individual iPhone ( e.g. where is IMEI stored , also in that NVRAM ?? ).

-3- is the Baseband NVRAM identical to the Power NVRAM that iBooter mentions ( still beeing to afraid to mess around with iBooter right now ) ???

-4- I assume that all those data was determined in factory by serious high-tech-near-magic-devices, how on earth can any kind of wifi/bluetooth/gsm fix software restore it ?? Is there a kind of checksum or backup ??
OR is it simply overwriting the calibration data with data from another phone, making it valid again but seriously affecting GSM/WiFi/Bluetooth reception quality and/or energy consumption ?!

So, either keep us ( me ) stupid and then complain about newbie behaviour and questions or help us ( me ) out by answering some of my questions and correcting wrong assumptions, will you ??


:-)


Ender

ziphone.org still displaying "No Need to Fix NVRAM"....lol

I'm glad there is solution for invalid calibration now...


You can try to read the NVRAM data using ibooter...

ikuwara: i know about iBooter, the thing is i'd love to get more info before messing around with it, got a link or care to elaborate about NVRAM, calibration data etc. ??

Ender

Originally Posted by ikuwara

I'm glad there is solution for invalid calibration now...

@ikuwara

Can you explain more details on your above statement please?

Is this the solution to the following serious iphone desease

"After a new start I get the message:
AppleMRVL868x: Readin EEPROM data
AppleMRVL868x: Starting
AppleMRVL868x: Invalid calibration data in device tree
BSD root: md0, major 2, minor 0

and iphone goes into endless loop"

YES. swifi can solve your problem ,trinidat!!

But u need to solve your BSD root: md0, major 2, minor 0 problem first...


go to http://wikee.iphwn.org/sgold_bootrom:fixwifi for more info!!!

Originally Posted by ikuwara

But u need to solve your BSD root: md0, major 2, minor 0 problem first...

Thank you ikuwara!
This seems to be great news for the hopeless souls from this threat: http://www.hackint0sh.org/forum/show...one#post226685

Anyway, swifi seems not to be able to solve the "BSD root: md0, major 2, minor 0 problem." How can one fix this ?

well, thx for hijacking the thread :-)

Ender

Bump up :-) ( Only and last time, i promise !! )...

C'mon, is there no one who is willing to share his/her knowledge with us ??

Greetings,

Ender