Originally Posted by foundboy
what about lg mytouch e-739
I think only Samsung uses "Download Mode". LG probably has Fastboot like most other Android devices (Vol-Dn + Pwr). But you can try it - it won't hurt.
EDIT: Finally got an LG device. It does indeed have Download mode (and no Fastboot...Vol-Dn+Pwr brings me to a scaled back bootloader). Don't know if if asks to continue or not, but Download Mode doesn't hurt the phone unless you are potentially flashing software with it.
Phone: HTC MyTouch 4G Slide (Doubleshot), S-Off, running CyanogenMod 10.1
Phone: LG Optimus F3Q (D520), stock rooted, CWM, Xposed, GravityBox
Tablet: Asus MeMO Pad 8 (ME180A), stock rooted
Retired: Samsung Infuse 4G (i997R) running CarbonROM 4.4.4
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