. Okay, here's the "TL;DR" (too long--didn't read) version: Q: can I get/install an OTA if I have a custom recovery (ClockworkMod) installed? A: nope (the OTA will actually download, but the installation will fail unless you have a stock recovery installed) Q: can I then just re-flash the stock recovery and then get/install the OTA? A: yep (works just fine) Q: can I be rooted and get/install an OTA? A: yep (you'll lose root afterwards, though) Q: do I lose root access at that point? A: yep (easy to get back) Q: what do I do then? A: invoke custom recovery and re-install the su.zip root package Cheers! Here's the particulars of my little testing session tonight: ========================================================================= - initial phone state: VZW LTE/CDMA Samsung Galaxy Nexus running 4.0.2, rooted, with ClockworkMod installed - flashed back to stock 4.0.1 (VZE/LTE/CDMA) [note: I did not lock/relock bootloader] - powered back down - rebooted in fastboot / bootloader mode - flashed ClockworkMod custom recovery - restarted phone - got OTA notice; accepted and phone restarted, - upon reboot, OTA install almost immediately failed (show little, green Android with red triangle and ! mark inside) - flashed stock recovery back; rebooted; checked phone status (still 4.0.1); checked for system updates--couldn't force update at this time (tested this again later on) - flashed back to 4.0.1 stock; left stock recovery intact - rebooted, waited for OTA prompts, accepted, rebooted, installed, was now 4.0.2 ========================================================================= - flashed back again to 4.0.1 stock - flashed ClockworkMod again over-top of stock recovery - rebooted - downloaded and accepted OTA - OTA install failed (again) - flashed stock recovery - rebooted; got another system update notification - OTA installation successful; again back to 4.0.2 ========================================================================= - power down phone - reboot into fastboot / bootloader mode - reflash completely back to stock (4.0.1) - soft-boot ClockworkMod and install su.zip root package - reboot - verified root access with Titanium Backup - wait for OTA (system update) notification - installation worked just fine - rebooted - checked system version, now back to 4.0.2 - check root access--root was "gone" (really, just inert) - powered-down, flashed ClockworkMod, re-installed su.zip root - rebooted, verified root access (yay!) Fin.