[HTC Rezound] jefffeely:
Warning!!!!!!!!! Some of these commands can and will brick your phone. Don't run them if you don't know what you are doing.

Thought these might be useful to someone:

HBOOT 2.25:

(bootloader) refurbish

(bootloader) get_identifier_token

(bootloader) checkSbl1

(bootloader) checkHWSecurity

(bootloader) checkKeycardID

(bootloader) enter

(bootloader) keytest

(bootloader) heap

(bootloader) boot

(bootloader) reset

(bootloader) powerdown

(bootloader) rebootRUU

(bootloader) heap_test

(bootloader) erase_phone_storage

(bootloader) erase_userdata

(bootloader) ats

(bootloader) rtask

(bootloader) task

(bootloader) enableqxdm

(bootloader) gencheckpt

(bootloader) readmeid

(bootloader) readpid

(bootloader) writepid

(bootloader) readcid

(bootloader) writecid

(bootloader) readimei

(bootloader) writeimei

(bootloader) readsecureflag

(bootloader) writesecureflag

(bootloader) lock

(bootloader) list_partition_emmc

(bootloader) load_emmc

(bootloader) check_emmc

(bootloader) check_emmc_mid

(bootloader) read_mmc

(bootloader) load_modem_emmc

(bootloader) get_wp_info_emmc

(bootloader) send_wp_info_emmc

(bootloader) get_ext_csd_emmc

(bootloader) get_sector_info_emmc

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ENG HBOOT

(bootloader) command list

(bootloader) mb

(bootloader) mh

(bootloader) mw

(bootloader) ew

(bootloader) eh

(bootloader) eb

(bootloader) mmu

(bootloader) ram_test

(bootloader) jump

(bootloader) test

(bootloader) sdtest

(bootloader) eraseconfig

(bootloader) writeconfig

(bootloader) readconfig

(bootloader) writesku

(bootloader) readsku

(bootloader) rflash

(bootloader) tflash

(bootloader) block_test

(bootloader) partition_test

(bootloader) rbchk

(bootloader) erasesd

(bootloader) btrouter

(bootloader) nfcrouter

(bootloader) nfcreader

(bootloader) nfccard

(bootloader) nfcversion

(bootloader) nfcdl

(bootloader) nfctransaction

(bootloader) tick

(bootloader) heaptable

(bootloader) sysinfo

(bootloader) emapi

(bootloader) emapiTest

(bootloader) emapiCountryID

(bootloader) emapiWlanMac

(bootloader) emapiSetDefCal

(bootloader) emapiReadCal

(bootloader) emapiReadbtaddr

(bootloader) lr

(bootloader) imgcrc

(bootloader) resetautoimage

(bootloader) resetpreferdiag

(bootloader) resetRUUflag

(bootloader) writeserialno

(bootloader) readserialno

(bootloader) battcheck

(bootloader) enter

(bootloader) gotofastboot

(bootloader) gotohboot

(bootloader) writemid

(bootloader) usbtestmode

(bootloader) eraseWifiFlash

(bootloader) erase

(bootloader) readmbserialno

(bootloader) listpartition

(bootloader) erasebcid

(bootloader) writebcid

(bootloader) readbcid

(bootloader) fmrouter

(bootloader) fmtx

(bootloader) resetuP

(bootloader) bdaddress

(bootloader) readbdaddr

(bootloader) resetgift

(bootloader) wMfgTp

(bootloader) rMfgTp

(bootloader) emptypagecheck

(bootloader) saveprt2sd

(bootloader) savemem2sd

(bootloader) savefb2sd

(bootloader) emapiInit

(bootloader) emapiChannel

(bootloader) emapiBand

(bootloader) emapiRate

(bootloader) emapiRateset

(bootloader) emapiCountry

(bootloader) emapiTXpwr1

(bootloader) emapiPkteng_start

(bootloader) emapiPkteng_stop

(bootloader) emapiOut

(bootloader) emapiFqacurcy

(bootloader) emapiCrsuprs

(bootloader) emapiUp

(bootloader) emapiDown

(bootloader) emapiMpc

(bootloader) emapiCounters

(bootloader) emapiVersion

(bootloader) emapiEtheraddr

(bootloader) emapinRate

(bootloader) emapiSetIrqPin

(bootloader) usblog

(bootloader) bkflash2emmc

(bootloader) fl

(bootloader) loaddiag

(bootloader) lnb

(bootloader) init_a1026_fw

(bootloader) checkKeyCard

(bootloader) loopback

(bootloader) spitest

(bootloader) i2ctest

(bootloader) pmic8058_led_test

(bootloader) ats

(bootloader) gpiow

(bootloader) gpior

(bootloader) clock

(bootloader) i2cr

(bootloader) i2cw

(bootloader) i2ctest

(bootloader) ulpi

(bootloader) changeCid

(bootloader) powertest

(bootloader) read_l2_acc_fuse

(bootloader) ltetest

(bootloader) sdio_loopback

(bootloader) sdio_setsize

(bootloader) sdio_readblk

(bootloader) sdio_writeblk

(bootloader) sdio_readblk

(bootloader) sdio_dumpreg

(bootloader) get_mdm9k_serial

(bootloader) clear_mdm9k_serial

(bootloader) update_prkey

(bootloader) emmc_boot

(bootloader) 8x60i2cr

(bootloader) 8x60i2crNoAddr

(bootloader) 8x60i2cwNoAddr

(bootloader) 8x60i2cw

(bootloader) poweron

(bootloader) poweroff

(bootloader) setvol

(bootloader) spi

(bootloader) fat

(bootloader) pmgpiow

(bootloader) pmgpior

(bootloader) 8058vregon

(bootloader) 8058vregoff

(bootloader) 8058vregw

(bootloader) 8058vregr

(bootloader) 8901vregon

(bootloader) 8901vregoff

(bootloader) 8901vregw

(bootloader) 8901vregr

(bootloader) mipi_test

(bootloader) chargeron

(bootloader) chargeroff

(bootloader) adc

(bootloader) readsimlocktype

(bootloader) enablesimlock

(bootloader) addsimlockcode

(bootloader) clearsimlockcode

(bootloader) listsimlockcode

(bootloader) clearunlockrecord

(bootloader) lite_heap_test

(bootloader) vibrate_test

(bootloader) getrtc

(bootloader) setrtc

(bootloader) getrtcalarm

(bootloader) setrtcalarm

(bootloader) pgfs

(bootloader) bumpclk

(bootloader) acpuclk_get

(bootloader) acpuclk_set

(bootloader) rpmclk_set

(bootloader) rpmclk_get

(bootloader) oschalt

(bootloader) tz_req

(bootloader) blow_efuse

(bootloader) blow_qfuse_cfg

(bootloader) dump_tzlog

(bootloader) fdisk_emmc

(bootloader) set_partition_emmc

(bootloader) erase_emmc

(bootloader) test_emmc

(bootloader) sector_erase_emmc

(bootloader) fat_format_emmc

(bootloader) init_emmc

(bootloader) reinit_emmc

(bootloader) write_mmc

(bootloader) set_wp_emmc

(bootloader) write_prot_test

(bootloader) clear_wp_emmc

(bootloader) set_enh_area_emmc

(bootloader) refurbish

(bootloader) get_identifier_token

(bootloader) checkSbl1

(bootloader) checkHWSecurity

(bootloader) checkKeycardID

(bootloader) enter

(bootloader) keytest

(bootloader) heap

(bootloader) boot

(bootloader) reset

(bootloader) powerdown

(bootloader) rebootRUU

(bootloader) heap_test

(bootloader) rtask

(bootloader) task

(bootloader) enableqxdm

(bootloader) gencheckpt

(bootloader) readmeid

(bootloader) readpid

(bootloader) writepid

(bootloader) readcid

(bootloader) writecid

(bootloader) readimei

(bootloader) writeimei

(bootloader) readsecureflag

(bootloader) writesecureflag

(bootloader) lock

(bootloader) list_partition_emmc

(bootloader) load_emmc

(bootloader) check_emmc

(bootloader) check_emmc_mid

(bootloader) read_mmc

(bootloader) load_modem_emmc

(bootloader) get_wp_info_emmc

(bootloader) send_wp_info_emmc

(bootloader) get_ext_csd_emmc

(bootloader) get_sector_info_emmc