[Motorola Droid Maxx] inadroidly:
bootloop to the MAXX

Hi sd_shadow et al.,

Bootlooping within 160 seconds has frustrated all my admittedly very noob attempts at resuscitating my lightly used 4yo Droid Razr MAXX, so please indulge me troubling y'all. Narrative description follows; bullet point responses to most prompts on this sticky note help thread appear further below.

More than a year ago now, after a sudden spate of battery overheating and unstable charging, I replaced the battery of my Razr MAXX with this one:

http://www.amazon.com/dp/B008I66GB0/

I sealed it back up as best I could, and continued enjoying its loyal service right up until ... this past April Fool's Day. With it idle in my back pocket, sitting in the heart of one of the country's top ten metro downtowns, I felt it heating up, saw the "No LTE/CDMA network found" prompt, then discovered it spontaneously re-starting -- much to my chagrin as a battery miser who has kept his settings at "destroy every activity as soon as the user leaves it," and further limited background processes to a miserly one, even prior to the battery replacement thirteen months ago.

The very next morning, a tech at the carrier worked on it with me for a few hours, throughout which I never 'fessed up to my warranty-voiding battery replacement. That trip succeeded only in a SIM card re-fresh (and still "No LTE/CDMA network found"), then data erasure amidst multiple factory re-set attempts. Two repair shops listened to my recaps and -- though they disagreed on causes -- arrived at the same conclusion as the carrier without so much as touching it: just upgrade and move on, son.

At present -- after flashing and rooting as detailed below -- it boots normally to an Android "welcome" screen inviting me to select a language ... before re-booting in under three minutes. It still lets me access configurations normally; but bootlooping persists unless I start in fastboot, which it still accomplishes without locking or other complaints.

I don't even know how to correctly describe its current, persistently blinkered state to help myself to a reasonable intervention. I've seen several other Razr MAXX users here and elsewhere complain of "No LTE/CDMA network ..." errors; they seem to have found paths forward using utilities (with much love back to you xda studs :). To my untrained eye, my own long-Otterboxed unit seems physically perfect -- just lacking ... an OS? the right firmware flashed to it? I've only ever downloaded, like, 14 apps to it; and hadn't added any in months, or even changed any settings, leading up that fateful Fool-ish night.

Custom Rom

Multiple attempts to flash official Jellybean Firmware via mattlgroff's utility, which led to cascades of routine "Ok" messages:

http://xdaforums.com/showthread.php?t=2192467

System version

98.72.165.XT912.Verizon.en.US

Android version 4.1.2

build number 9.8.2O-72_VZW-16-5

build date Thu Nov 21 14:10:17 CST 2013

Fastboots to the usual normal/recovery/AP/BP options.

Root status

Multiple attempts to root via drjbliss's CyanogenMod script, which got as far as prompting me to grant su permission:

https://wiki.cyanogenmod.org/w/Install_CM_for_spyder

Carrier/CDMA/GSM

Verizon Wireless

Your exact problem

Bootlooping so persistent that it prevents any traction.

Thanks for sharing my suffering.