[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] Amarali123:
Update 1: I also formated /system

Hi, and if you're reading past the title, thanks anyway.

A friend of mine came with the request to flash a CM that runs a JB 4.2.2, as he was tired of his Note running ICS 4.0.4 ever since he saw my Nexus 4's CM10.1. I did warn him that it is potentially dangerous, but as I do consider myself a non-technical power user in terms of computers, and flashing my Nexus 4 seemed like a breeze, I agreed that I will do my best. This post is a bit longer than one would like, but I want to cover all points, since I feel personally responsible for bricking his phone (neither of us is particularly rich, so it's a big deal).

The first thing I did is root the phone with the ExynosAbuse trick, but upon reading CM's instructions on flashing their ROM, it advised that rooting the Note is neither necessary nor recommended. Upon seeing that, I simply unrooted the phone and deleted the app.

Next, I installed the Heimdall Suite 1.3.1 for Windows upon reading that 1.3.2. is potentially unsafe, used heimdall flash --kernel zImage --no-reboot to flash hardcore's CWM speedmod-kernel-n7000-ics-k3-15-Odin, and not the one that is linked in CM's guide, since the link was dead, regardless I thought I've got the correct kernel and went for it. From this point onward, the boot Note logo had this yellow triangle on:

I then downloaded the latest CM Nightly - cm-10.1-20130409-NIGHTLY-n7000 and put it on the SD card manually vie the PC explorer and then booted into recovery and unzipped it, the installation went fine, the Note was officially running the latest CM10.1 (as required by the guide, I wiped data/factory reset in CWM)

And this is when things started getting ugly.

Everything ran perfect, but for some reason the new ROM couldn't see the internal SD card that held everything (I wanted to put gapps, having forgotten to intially unzip them with the ROM flashing). Nothing made it work, the phone was no longer accessible via the PC, in MTP mode it didn't show on my desktop, and showed as empty on my laptop. Camera mode worked on both computers. USB Storage only worked every now and then with no clear pattern, but both partitions that I could see were greyed out on both my laptop and desktop and I couldn't access them. I Google'd and saw that a lot of people had reported that the latest CM nightly is causing this problem, and to revert to an older ROM. I next chose the stable cm-9.1.0-n7000.zip. I ended up with a 4.0.4 CMod, but I still couldn't see the internal SD card and then decided to try the even older cm-9.0.0-n7000.zip - same thing.

This was already more than 3 hours into the process and I was going crazy so I supposed my next move was kind of retarded in hindsight - I loosely remember reading something about having to format the partitions, and mount/unmount in CWM didn't bring back any results, and CWM kept giving back errors including /emmc/ so I went into CWM and formatted the eMMC thinking that will solve the problem.

The phone is now displaying a battery, but it's stuck on loading even though it's been charging for a few hours now and must be at 100%. Both Download Mode and Recovery Mode are available, and I can flash things via DL Mode. CWM Works too, but for some reason it got reverted back to 5.8.x instead of the recovery-clockwork-6.0.1.2-n7000. This is the error I get when trying to flash a ROM now: (Status 7).

I decided to not go any further and instead ask for help and see if anyone was feeling like extending a hand. I know it was retarded to wipe the eMMC before consulting guides, but the amount of information is quite frankly intimidating and it made it near impossible for me to know exactly what I was supposed to do. The phone is still under warranty by his Carrier, but we do not have any Samsung services around where we live. I could tell him to go ahead and service it in, but won't the counter give away that the phone has been messed with and void his warranty?

Any help is appreciated!

P.S. being a new user, I am not allowed to post external links, as such the pictures I snapped can't be linked :/