Webspace of Eric Brodeur

Perspectives on storytelling and digital cinema technology

Category: Apple

During the update from iPhone iOS version 4.1 to 4.3 the phone was stuck in Recovery Mode. The update consistently failed with error 1013.

Before the update I did two things:

  • Backup in iTunes
  • Saved my SHSH using TinyUmbrella

I ran TinyUmbrella just in case I decided to jailbreak to an earlier iOS version. Since it does nothing more than read data from the iPhone I didn’t think it had broken anything – wrong. The app modifies the hosts file which breaks the firmware update process.

The solution is simple: open Terminal, execute sudo nano /etc/hosts. Remove or comment-out the line containing gs.apple.com. I restarted iTunes, updated to iOS 4.3, and successfully restored my files.

Our final day of shooting Filly Brown was filled with a variety of last-minute shots, notably an insert which required a prop iPhone playing a video. The clip was exported to H.264 and tested on my personal iPhone 4. I rushed to set knowing I would transfer the clip via Internet.

If only it had been that easy. I understand the argument for having an SD slot on the iPhone.

Problem #1 – Not a prop

Our "prop" iPhone 3G actually belonged to a crew member. This means I couldn't just wipe it as needed.

Problem #2 – iTunes

The computer used to sync the iPhone wasn't available. For this reason I couldn't use my copy of iTunes because this forces you to wipe the device.

Problem #3 – AT&T coverage

Emailing the video clip was terribly slow because of AT&T's poor wireless coverage in the area.

Problem #4 – Virgin Mobile coverage

Our Virgin Mobile Mifi adapter also had poor reception – no improvement here.

Problem #5 – Adobe Flash

Suffering through a slow transfer using Virgin's Mifi I tried WeTransfer.com for a web-to-browser transfer. I discovered that WeTransfer requires Flash on the client to download the file. There is no Flash on the iPhone.

Problem #6 – Wifi transfer

I attempted a MacBook-to-iPhone transfer using wifi. That didn't work either because the Virgin Mifi adapter doesn't support infrastructure/ad-hoc networks – only direct to Internet.

Problem #7 – iOS 3

I used Dropbox and the iPhone app Download Manager Pro Lite to retrieve the clip. After a lengthy upload and download with AT&T Wireless, I opened the clip to discover that iOS 3.13 doesn't play it. Apparently there are limitations with H.264 in iOS 3 compared with my test on iOS 4.1.

The clip was re-exported out of Compressor using an iPhone specific setting and re-transferred via Dropbox.

Finally…success.

What We Learned

The entire process took hours to complete and most of the time was spent waiting for slow transfers. Some/all of the problems could have been avoided with more preparation but that's not always an option during a shoot.

An SD card slot would have been ideal. No wireless transfers over slow broadband, no iTunes limitations, no requirements for Adobe Flash.

Apple's reliance on wireless or iTunes sync works well…in a perfect world. However, the world is not perfect and we sailed into a perfect storm of events that revealed limitations of our technology – particularly the iPhone.

I'll do things differently next time but it won't stop me from searching for a direct method of iPhone transfers, SD slot or not.

These tips come courtesy of my assistant editor Monty Bass. We implemented them on our post-production Macs to save a few CPU cycles and remove extraneous application prompting.

Disable Dashboard

From a Terminal prompt, enter the following commands followed by [Enter]:

defaults write com.apple.dashboard mcx-disabled -boolean YES

killall Dock

Disable Time Machine Prompts

From a Terminal prompt, enter the following command followed by [Enter]:

defaults write com.apple.TimeMachine DoNotOfferNewDisksForBackup -boolean YES

Disable Spotlight Indexing

Open System Preferences then click Spotlight.

Select the Privacy tab and add every internal and external disk volume you don’t want to index. You will need to mount them first.

iPad used for screening dailies on-set

Last month I attended an event hosted by the LA Post Production Group. Speaking was Michael Cioni from LightIron Digital about file-based workflows (RED, Alexa, DSLR, etc.) and image resolution. What I took away from the presentation is the robustness of REDCODE for both resolution and color space, especially compared to DSLR's (paltry in comparison) HD resolution and lower color bit-depth.

At one point someone asked about Michael's iPad controlling the Keynote presentation and he shared a little nugget about using iPad in film production. They are using a pair of 64 GB iPads in Mel Gibson's latest feature to screen footage.

As they pull files off the (seven or so) cameras they are converted for iPad playback. These dailies (should they be called hourlies?) are organized by scene in iPhoto and copied to alternate iPads which are swapped throughout the day for Gibson's review. Michael indicated the screen size and battery life is ideal and 64 GB of storage is enough for the entire feature.

Moving your Mac Documents folder to Dropbox

Apple logoUntil Dropbox provides a feature to easily redirect your local folders to the cloud-based Dropbox, you need to use symlinks or consider abandoning the default Documents folder on your Mac.

Being a purist, I wanted to keep using the entire Documents folder without symlinks for new subfolders I wished to place into Dropbox. This forum post at Apple Discussions provides a quick and easy solution.

Word of caution: if you drag the contents of a folder (such as Documents) into Dropbox and shortly thereafter change your mind (and drag it back) you may find all of those files are deleted from Dropbox and you Mac. Be sure to have an up-to-date Time Machine backup before you perform large file moves.

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