[Fire TV General] jaminmc:
I Installed BusyBox, as uname isn't on the Fire Stick by default. I also did the Home button double-press disable as proof that it is on 5.0.5.1

$ adb shell
shell@montoya:/ $ su
root@montoya:/ # uname -a
Linux localhost 3.0.31+ #3 SMP PREEMPT Sun May 15 01:19:40 UTC 2016 armv7l GNU/Linux
root@montoya:/ # cat /proc/cmdline
console=none androidboot.hardware=montoya androidboot.selinux=enforcing mem=509M@0xA0000000 lpj=12001280 androidboot.serialno=70940507607XXXXX s.irdrop=534 silicon.type=Typical_Fast usb_charge_type=wall_charger uboot_timestamp=2015-11-12
root@montoya:/ # pm disable com.amazon.venezia/com.amazon.venezia.list.AppsLibraryDeeplinkEventReceiver
Component {com.amazon.venezia/com.amazon.venezia.list.AppsLibraryDeeplinkEventReceiver} new state: disabled
root@montoya:/ # top

User 10%, System 4%, IOW 0%, IRQ 0%
User 51 + Nice 11 + Sys 29 + Idle 521 + IOW 0 + IRQ 0 + SIRQ 0 = 612

PID PR CPU% S #THR VSS RSS PCY UID Name
144 0 3% S 18 57844K 4144K fg system /system/bin/surfaceflinger
3091 1 3% S 74 1055380K 42464K fg u0_a23 com.waxrain.airplaydmr
5361 0 2% S 40 1099740K 54800K fg amz_u0a4 com.amazon.bueller.photos
3235 0 1% S 70 1047828K 41356K bg amz_u0a3 com.amazon.whisperlink.core.android
5782 0 0% R 1 2500K 984K fg root top
51 0 0% S 1 0K 0K fg root VCHIQ-0
29 1 0% S 1 0K 0K fg root ksmd
1225 0 0% S 1 0K 0K fg root usb-thread
3148 0 0% S 1 964K 180K fg u0_a23 /data/data/com.waxrain.airplaydmr/files/wdog2
52 0 0% S 1 0K 0K fg root VCHIQr-0
1167 0 0% S 22 989300K 28336K fg system com.amazon.device.services
1060 1 0% S 91 1076764K 65484K fg system system_server
15 1 0% S 1 0K 0K fg root i2c_master_rese
16 1 0% S 1 0K 0K fg root i2c_master_rese
17 1 0% S 1 0K 0K fg root knllog
18 0 0% S 1 0K 0K fg root sync_supers
19 0 0% S 1 0K 0K fg root bdi-default
20 1 0% S 1 0K 0K fg root kblockd
21 0 0% S 1 0K 0K fg root kworker/0:1
22 0 0% S 1 0K 0K fg root khubd
23 1 0% S 1 0K 0K fg root cfg80211
24 1 0% S 1 0K 0K fg root kworker/1:1
25 1 0% S 1 0K 0K fg root rpciod
26 1 0% S 1 0K 0K fg root bcm_hsotgctrl_e
27 1 0% S 1 0K 0K fg root khungtaskd
28 1 0% S 1 0K 0K fg root kswapd0
30 0 0% S 1 0K 0K fg root fsnotify_mark
31 1 0% S 1 0K 0K fg root nfsiod
32 1 0% S 1 0K 0K fg root crypto
50 0 0% S 1 0K 0K fg root VCHIQka-0
53 1 0% S 1 0K 0K fg root VCHIQs-0
54 0 0% S 1 0K 0K fg root vc-watchdog
55 1 0% S 1 0K 0K fg root kworker/u:1
62 1 0% S 1 0K 0K fg root dwc_otg
63 1 0% S 1 0K 0K fg root DWC Notificatio
64 1 0% S 1 0K 0K fg root f_mtp
65 1 0% S 1 0K 0K fg root file-storage
66 1 0% S 1 0K 0K fg root kinteractiveup
67 1 0% S 1 0K 0K fg root SPUM proc threa
68 1 0% S 1 0K 0K fg root SPUM done threa
73 1 0% S 1 0K 0K fg root SPUM proc threa
74 1 0% S 1 0K 0K fg root SPUM done threa
79 1 0% S 1 0K 0K fg root binder
80 1 0% S 1 0K 0K fg root irq/156-caph-in
81 1 0% S 1 0K 0K fg root AudioCtrlWq
82 1 0% S 1 0K 0K fg root VC-FB-Read
83 0 0% S 1 0K 0K fg root SMIO
1 1 0% S 1 920K 404K fg root /init
85 0 0% S 1 0K 0K fg root mmcqd/0boot0
86 0 0% S 1 0K 0K fg root mmcqd/0boot1
87 0 0% S 1 0K 0K fg root mmcqd/0rpmb
88 0 0% S 1 900K 212K fg root /sbin/ueventd
90 0 0% S 1 0K 0K fg root jbd2/mmcblk0p15
91 1 0% S 1 0K 0K fg root ext4-dio-unwrit
94 1 0% S 1 0K 0K fg root flush-179:0
98 0 0% S 1 0K 0K fg root jbd2/mmcblk0p18
99 1 0% S 1 0K 0K fg root ext4-dio-unwrit
100 0 0% S 1 0K 0K fg root jbd2/mmcblk0p17
101 0 0% S 1 0K 0K fg root ext4-dio-unwrit
112 0 0% S 1 0K 0K fg root jbd2/mmcblk0p5-
113 0 0% S 1 0K 0K fg root ext4-dio-unwrit
121 0 0% S 1 1148K 496K fg root /system/bin/sh
139 0 0% S 5 6548K 776K fg logd /system/bin/logd
140 1 0% S 1 1588K 148K fg root /sbin/healthd
141 0 0% S 1 2392K 648K fg root /system/bin/lmkd
142 0 0% S 1 1248K 464K fg system /system/bin/servicemanager
143 1 0% S 3 5820K 1084K fg root /system/bin/vold
145 1 0% S 7 8540K 576K fg system /system/bin/mcDriverDaemon
153 0 0% S 9 10816K 952K fg root /system/bin/netd
157 0 0% S 1 1816K 516K fg root /system/bin/debuggerd
158 1 0% S 1 1944K 608K fg install /system/bin/installd
162 0 0% S 2 21404K 2824K fg root /system/xbin/vitals_collection_agent
164 0 0% S 11 42528K 2740K fg media /system/bin/mediaserver
165 1 0% S 11 31636K 2336K fg system /system/bin/tvserver
169 0 0% S 5 6392K 752K fg system /system/bin/vclmk
176 1 0% S 5 6296K 768K fg system /system/bin/cecdaemon
177 0 0% S 1 4364K 1160K fg keystore /system/bin/keystore
178 1 0% S 6 966408K 29072K fg root zygote
179 1 0% S 3 4028K 832K fg media_rw /system/bin/sdcard
180 0 0% S 1 1324K 308K fg root /system/bin/btremoted
182 0 0% S 8 7728K 252K fg shell /sbin/adbd
245 1 0% S 1 0K 0K fg root kauditd
289 1 0% S 1 0K 0K fg root mc_log
338 0 0% S 1 0K 0K fg root kworker/0:2
462 0 0% S 5 19892K 3296K fg drm /system/bin/drmserver
562 0 0% S 1 1064K 164K fg root daemonsu:mount:master
744 1 0% S 3 3116K 268K fg root daemonsu:master
760 0 0% S 1 19892K 3296K fg drm /system/bin/drmserver
1221 1 0% S 1 0K 0K fg root wlfc-mon-thread
1224 0 0% S 1 0K 0K fg root wl_event_handle
1363 1 0% S 12 983240K 25584K bg amz_u0a6 com.amazon.tv.ime
1412 0 0% S 1 5120K 1660K fg wifi /system/bin/wpa_supplicant
1420 1 0% S 14 976792K 23916K bg amz_u0a5 com.amazon.precog
1432 1 0% S 15 984600K 25028K fg amz_u0a7 com.amazon.vizzini
1444 0 0% S 16 984768K 24252K bg amz_u0a1 com.amazon.device.logmanager
1471 1 0% S 20 985444K 33868K bg amz_u0a4 com.amazon.imp
1499 1 0% S 25 997252K 33224K bg amz_u0a6 com.amazon.tcomm
1526 0 0% S 43 1063040K 43428K bg amz_u0a6 com.amazon.tv.launcher
1606 1 0% S 47 1016240K 29824K bg amz_u0a2 com.amazon.client.metrics
1631 0 0% S 18 983648K 25428K bg amz_u0a2 com.amazon.device.settings
1755 0 0% S 1 972K 352K bg amz_u0a5 logcat
1819 1 0% S 21 996956K 32564K bg amz_u0a6 com.amazon.tv.launcher:MediaBrowseServiceProcess
1836 1 0% S 15 987772K 31968K bg amz_u0a5 com.amazon.kso.blackbird:BlackbirdServiceProcess
1849 1 0% S 1 1112K 340K fg nobody /system/bin/dnsmasq
1870 1 0% S 1 1040K 400K bg amz_u0a2 logcat
1888 1 0% S 1 1108K 384K fg root /system/bin/sh
1980 0 0% S 51 1085684K 50744K bg amz_u0a3 com.amazon.avod
2006 0 0% S 12 974432K 25608K bg u0_a2 com.amazon.device.controllermanager
2029 1 0% S 24 1002908K 32408K bg amz_u0a6 com.amazon.tv.launcher:GlobalNavProcess
2135 1 0% S 1 1112K 364K fg dhcp /system/bin/dhcpcd
2136 1 0% S 1 1116K 200K fg root /system/bin/sh
2137 1 0% S 1 1108K 180K fg root /system/bin/sh
2166 0 0% S 1 1012K 332K fg root /system/bin/ping
2167 1 0% S 1 2428K 568K fg root grep
2197 1 0% S 1 0K 0K fg root kworker/1:2
2410 1 0% S 27 1000832K 26080K fg bluetoot com.android.bluetooth
2419 0 0% S 1 1292K 656K fg root /system/bin/sh
2763 0 0% S 28 1001428K 35632K bg u0_a30 com.kingouser.com
2812 1 0% S 1 3116K 204K fg root daemonsu:10030
3672 1 0% S 20 993760K 41456K fg u0_a15 de.belu.firestopper
3695 0 0% S 32 1002416K 32272K fg u0_a22 com.guidology.android.remotemouseforfiretv
3740 0 0% S 13 993576K 26520K bg u0_a29 net.loadinghome.rotatescreenorientation
3809 1 0% S 2 5168K 448K fg root daemonsu:0
3870 1 0% S 10 972256K 22728K bg u0_a2 com.amazon.device.controllermanager:BluetoothReceiver
3896 0 0% S 53 1045076K 46868K bg amz_u0a7 com.amazon.venezia
3958 1 0% S 14 983116K 28788K bg amz_u0a1 com.android.providers.downloads
4255 1 0% S 10 981540K 22468K bg amz_u0a5 com.amazon.kso.blackbird
4283 0 0% S 10 972264K 22368K bg u0_a2 com.amazon.device.controllermanager:WifiReceiver
4347 0 0% S 1 1116K 560K fg shell /system/bin/sh
4363 0 0% S 1 1064K 472K fg shell su
4366 0 0% S 1 5176K 580K fg root daemonsu:0:4363
4370 1 0% S 1 1120K 564K fg root tmp-mksh
4509 1 0% S 21 1005348K 37920K bg amz_u0a5 com.amazon.kindle.cms
4570 0 0% S 16 989604K 32044K bg amz_u0a6 com.amazon.storm.lightning.services
4619 1 0% S 11 975212K 26652K bg amz_u0a7 com.amazon.sync.service
4849 1 0% S 10 974256K 26656K bg amz_u0a5 com.amazon.securitysyncclient
5405 1 0% S 22 1000016K 34880K fg amz_u0a4 com.amazon.bueller.photos:core
84 0 0% S 1 0K 0K fg root mmcqd/0
2 0 0% S 1 0K 0K fg root kthreadd
3 0 0% S 1 0K 0K fg root ksoftirqd/0
5 0 0% S 1 0K 0K fg root kworker/u:0
6 0 0% S 1 0K 0K fg root migration/0
7 1 0% S 1 0K 0K fg root migration/1
9 1 0% S 1 0K 0K fg root ksoftirqd/1
10 1 0% S 1 0K 0K fg root khelper
11 1 0% S 1 0K 0K fg root netns
12 1 0% S 1 0K 0K fg root suspend
13 1 0% S 1 0K 0K fg root i2c_master_rese
14 1 0% S 1 0K 0K fg root i2c_master_rese