fig1 schematically presents a mobile terminal as an electronic device , in which a recovery from a malfunction of a hardware module in accordance with an embodiment of the invention is implemented . the mobile terminal 1 can be for example a conventional mobile phone , which includes among other components an lcd module 10 as a hardware module and a host 20 . the lcd module 10 comprises a screen 11 and a display driver 12 . the display driver 12 may be connected to the screen 11 by an internal bus . the display driver 12 comprises among other components a frame memory 13 , a position control portion 14 , control registers 15 and a powering circuit 16 . the powering circuit 16 is connected to the battery voltage and takes care of providing the components of the lcd module 10 with an appropriate power . the host 20 includes among other components a frame control portion 21 and a recovery component 22 . the frame control portion 21 is connected via a data bus 31 to an input of the frame memory 13 of the display driver 12 . a signal line 32 moreover connects the position control portion 14 on the one hand with the frame control portion 21 and on the other hand with the recovery component 22 . the recovery component 22 is further connected via an hw reset line 33 with the lcd module 10 . a recovery from a malfunction of the mobile terminal 1 due to an external influence , like an esd pulse , will now be described with reference to the flow chart of fig2 . fig2 illustrates on the left hand side the operation of the lcd module 10 and on the right hand side the operation of the host 20 . the host 20 runs an application ( not shown ), like a game , which requires a presentation of moving images on the screen 11 . the frame control portion 21 of the host retrieves data for the respectively required frame from some memory of the mobile terminal 1 ( not shown ) and provides it to the lcd module 10 via the data bus 31 . ( step 221 ) the display driver 12 of the lcd module 10 buffers the data of a received frame in its frame memory 13 . the frame is then presented position by position on the screen 11 with data from the frame memory 13 and under control of the position control portion 14 . the position control portion 14 uses to this end a horizontal and a vertical synchronization signal . ( step 211 ) when the update of the screen 11 based on the currently buffered frame data has been completed and no malfunction occurred ( step 212 ), the position control portion 14 activates the signal line 32 ( step 213 ). to this end , the voltage on the signal line 32 , which is low by default , is temporarily set to a higher value . meanwhile , the frame control portion 21 and the recovery component of the host 20 monitor the signal line 32 ( step 222 ). the frame control portion 21 considers an active signal line 32 in a conventional manner as a synchronization signal , that is , as an indication that data for a new frame is required in the display driver 12 for updating the screen 11 . whenever the frame control portion 21 detects an activation of the signal line 32 , it thus provides the data for the next frame to the lcd module 10 ( step 221 ). the lcd module 10 continues thereupon updating the presentation on the screen 11 , now based on the new data in the frame memory 13 ( step 211 ). steps 211 through 213 and 221 through 223 are repeated in a loop , as long as no malfunction occurs and as long as a further frame is requested to be presented by the application running in the host 20 . in case a malfunction occurs ( step 212 ), in contrast , the signal line 32 is not activated any more ( step 214 ). the cause of the malfunction may be for example a change of bits in the control registers , a corrupted image on an internal bus or a stopped powering circuit . the malfunction may cause for example a blank display , corrupted data on the screen or a mode change of the display . in case the frame control portion 21 does not detect an activation of the signal line 32 within twice the refresh period ( 223 ), the frame control portion 21 omits the frame which is currently to be transferred to the frame memory 13 and waits for a new frame from the running application . visually , this can be seen as a stuck camera viewfinder or video . when the recovery component 22 detects that the signal line 32 is not activated on a regular basis within a predetermined period of time ( step 223 ), it assumes a malfunction to be present in the display driver 12 . in this case , the recovery component 22 causes a hardware reset of the display driver 12 by sending an interrupt to the display driver 12 via hw reset line 33 ( step 224 ). as a result of the subsequent hardware reset , any recoverable malfunction is removed . thus , a regular software refresh by way of precaution is not required anymore . this allows saving battery power in the mobile terminal 1 . nevertheless , a malfunction is recovered immediately and comprehensively in an automatic manner whenever required . in the presented embodiment of a mobile terminal , a signal line 32 as such is present anyhow for conventional synchronization purposes . it is simply used in addition in accordance with the invention for the purpose of enabling a recovery of an lcd module from a malfunction . it is to be understood that if an electronic device does not comprise a signal line for synchronization purposes , such a signal line may be provided specifically for the purpose of enabling a recovery of a display module from a malfunction in accordance with the invention . while there have been shown and described and pointed out fundamental novel features of the invention as applied to a preferred embodiment thereof , it will be understood that various omissions and substitutions and changes in the form and details of the devices and methods described may be made by those skilled in the art without departing from the spirit of the invention . for example , it is expressly intended that all combinations of those elements and / or method steps which perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention . moreover , it should be recognized that structures and / or elements and / or method steps shown and / or described in connection with any disclosed form or embodiment of the invention may be incorporated in any other disclosed or described or suggested form or embodiment as a general matter of design choice . it is the intention , therefore , to be limited only as indicated by the scope of the claims appended hereto .